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  <xsd:element abstract="true" id="spa_AydinDisplaysMember" name="AydinDisplaysMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_BankBaseRateMember" name="BankBaseRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock" name="BasisOfPresentationAndPrinciplesOfConsolidationPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_BeckwoodMember" name="BeckwoodMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="spa_BusinessAcquisitionCostOfAcquiredEntityAdditionalCashPaidForNetWorkingCapital" name="BusinessAcquisitionCostOfAcquiredEntityAdditionalCashPaidForNetWorkingCapital" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="spa_BusinessAcquisitionCostofAcquiredEntityEscrowCash" name="BusinessAcquisitionCostofAcquiredEntityEscrowCash" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_BusinessAcquisitionsProFormaIncomeLossBeforeIncomeTaxes" name="BusinessAcquisitionsProFormaIncomeLossBeforeIncomeTaxes" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="spa_BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherNoncurrentAssetsFavorableLeaseholdImprovements" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredandLiabilitiesAssumedOtherNoncurrentAssetsFavorableLeaseholdImprovements" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_BusinessGeographicAndSalesConcentrationAbstract" name="BusinessGeographicAndSalesConcentrationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="spa_BusinessGeographicAndSalesConcentrationLineItems" name="BusinessGeographicAndSalesConcentrationLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_BusinessGeographicAndSalesConcentrationTextBlock" name="BusinessGeographicAndSalesConcentrationTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_BusinessGeographicAndSalesConcentrationTextualAbstract" name="BusinessGeographicAndSalesConcentrationTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ByersPeakMember" name="ByersPeakMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_CapitalExpenditureNetByGeographicalSegmentAbstract" name="CapitalExpenditureNetByGeographicalSegmentAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_CapitalExpenditureNetByGeographicalSegmentTableTextBlock" name="CapitalExpenditureNetByGeographicalSegmentTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_CarryingValueAndEndingCompositionOfGoodwillAbstract" name="CarryingValueAndEndingCompositionOfGoodwillAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ChangeinPrepaidBenefitCostsRollForward" name="ChangeinPrepaidBenefitCostsRollForward" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ChangesInBenefitObligationsPlanAssetsAndFundedStatusOfPlanAbstract" name="ChangesInBenefitObligationsPlanAssetsAndFundedStatusOfPlanAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_CommitmentsAndContingenciesTextualAbstract" name="CommitmentsAndContingenciesTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_CompaniesDomain" name="CompaniesDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ComplexSystemsMember" name="ComplexSystemsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_CreditFacilityAdditionalBorrowingCapacity" name="CreditFacilityAdditionalBorrowingCapacity" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_CreonixLLCMember" name="CreonixLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
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  <xsd:element id="spa_DebtDiscountOnNotesAcquired" name="DebtDiscountOnNotesAcquired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="spa_DebtInstrumentAmortizationPercentage" name="DebtInstrumentAmortizationPercentage" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_DefenseAndSecuritySystemsMember" name="DefenseAndSecuritySystemsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_DeferredCostsAmortizedToInterestExpenseOverPeriod" name="DeferredCostsAmortizedToInterestExpenseOverPeriod" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_DeferredEngineeringandDesignCosts" name="DeferredEngineeringandDesignCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_DeferredTaxAssetsIncomeTaxCarryovers" name="DeferredTaxAssetsIncomeTaxCarryovers" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesOnGoodwillAssets" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesOnGoodwillAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesOnIntangibleAssets" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsImpairmentLossesOnIntangibleAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOnEnvironmentalRemediation" name="DeferredTaxAssetsTaxDeferredExpenseReservesAndAccrualsOnEnvironmentalRemediation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_DeferredTaxLiabilitiesTaxDeferredExpenseCompensationandBenefitsEmployeeCompensation" name="DeferredTaxLiabilitiesTaxDeferredExpenseCompensationandBenefitsEmployeeCompensation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_DefinedBenefitAndDefinedContributionPensionPlansDisclosureAbstract" name="DefinedBenefitAndDefinedContributionPensionPlansDisclosureAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_DefinedBenefitPlanExpectedFutureBenefitPayments" name="DefinedBenefitPlanExpectedFutureBenefitPayments" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_DefinedBenefitPlanFairValueOfPlanAssetsAbstract" name="DefinedBenefitPlanFairValueOfPlanAssetsAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_DefinedBenefitPlanFairValueOfPlanAssetsTableTextBlock" name="DefinedBenefitPlanFairValueOfPlanAssetsTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_DefinedBenefitPlanPeriodicPensionExpenses" name="DefinedBenefitPlanPeriodicPensionExpenses" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="spa_DefinedBenefitPlanUnrecognizedAmountInAccumulatedOtherComprehensiveIncomeBeforeTaxTableTextBlock" name="DefinedBenefitPlanUnrecognizedAmountInAccumulatedOtherComprehensiveIncomeBeforeTaxTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAxis" name="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationDomain" name="DefinedBenefitPlanWeightedAverageAssumptionsUsedInCalculatingBenefitObligationDomain" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_DefinedBenefitsPlanNumberOfEmployeesCovered" name="DefinedBenefitsPlanNumberOfEmployeesCovered" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_DefinedContributionPlanAssets" name="DefinedContributionPlanAssets" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_DefinedContributionPlanNumberOfSharesHeld" name="DefinedContributionPlanNumberOfSharesHeld" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_DirectlyHeldCorporateStockLargeCapMember" name="DirectlyHeldCorporateStockLargeCapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_DocumentAndEntityInformationAbstract" name="DocumentAndEntityInformationAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_EarningsLossPerShareDataTextualAbstract" name="EarningsLossPerShareDataTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_EffectiveIncomeTaxRateReconciliationActivitiesDeduction" name="EffectiveIncomeTaxRateReconciliationActivitiesDeduction" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_EffectiveIncomeTaxRateReconciliationForeignBadDebt" name="EffectiveIncomeTaxRateReconciliationForeignBadDebt" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_EmployeeRetirementBenefitPlansTextualAbstract" name="EmployeeRetirementBenefitPlansTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_EmployeeSizeIncentiveTaxRate" name="EmployeeSizeIncentiveTaxRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_EnvironmentalRemediationExpectedReimbursementsfromDepartmentofEnergy" name="EnvironmentalRemediationExpectedReimbursementsfromDepartmentofEnergy" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_ErapscoAgreementPolicyTextBlock" name="ErapscoAgreementPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_EstimatedAdditionalPossibleFutureEnvironmentalRemediationCosts" name="EstimatedAdditionalPossibleFutureEnvironmentalRemediationCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="spa_ExpectedReimbursementsforEnvironmentalRemediation" name="ExpectedReimbursementsforEnvironmentalRemediation" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_ExpirationPeriodAxis" name="ExpirationPeriodAxis" nillable="true" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
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  <xsd:element abstract="true" id="spa_ExpirationPeriodOneMember" name="ExpirationPeriodOneMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ExpirationPeriodThreeMember" name="ExpirationPeriodThreeMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ExpirationPeriodTwoMember" name="ExpirationPeriodTwoMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_FactorsResultingSignificantIncreasesReductionsInIncomeTaxRatesAbstract" name="FactorsResultingSignificantIncreasesReductionsInIncomeTaxRatesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_FenwalBloodTechnologiesMember" name="FenwalBloodTechnologiesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_FiniteLivedIntangibleAssetsAccumulatedImpairment" name="FiniteLivedIntangibleAssetsAccumulatedImpairment" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="spa_FutureEnvironmentalExpensesAmountExtensionInProvision" name="FutureEnvironmentalExpensesAmountExtensionInProvision" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element id="spa_FutureEnvironmentalExpensesProvision" name="FutureEnvironmentalExpensesProvision" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_GoodwillAndOtherIntangibleAssetsTextualAbstract" name="GoodwillAndOtherIntangibleAssetsTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_GrossProfitEffectofCapitalizedProfitinInventoryFromAcquisition" name="GrossProfitEffectofCapitalizedProfitinInventoryFromAcquisition" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="spa_IncomeTaxExpenseBenefitEffectonEarningsPerShareBasicandDiluted" name="IncomeTaxExpenseBenefitEffectonEarningsPerShareBasicandDiluted" nillable="true" substitutionGroup="xbrli:item" type="num:perShareItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_IncomeTaxExpenseBenefitEffectonNetIncome" name="IncomeTaxExpenseBenefitEffectonNetIncome" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_IndustrialDevelopmentRevenueBondMember" name="IndustrialDevelopmentRevenueBondMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_IndustrialRevenueBondsMember" name="IndustrialRevenueBondsMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_JointVentureExistence" name="JointVentureExistence" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_LiborRateMember" name="LiborRateMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_LongTermDebtIssued" name="LongTermDebtIssued" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="spa_LongtermDebtIncreaseinInterestExpense" name="LongtermDebtIncreaseinInterestExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="spa_LongtermDebtIncreaseinInterestRate" name="LongtermDebtIncreaseinInterestRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="instant" />
  <xsd:element id="spa_MarketRiskExposurePolicyTextBlock" name="MarketRiskExposurePolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_MedicalDeviceMember" name="MedicalDeviceMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_NetDeferredIncomeTaxLiabilitiesAbstract" name="NetDeferredIncomeTaxLiabilitiesAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_NetIncomePerShareAbstract" name="NetIncomePerShareAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_NetPeriodicBenefitMember" name="NetPeriodicBenefitMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_NoncashorPartNoncashEnvironmentalRemediationExpense" name="NoncashorPartNoncashEnvironmentalRemediationExpense" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element id="spa_NumberOfBoardMemberEmployees" name="NumberOfBoardMemberEmployees" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_NumberOfLongTermIncentivePlans" name="NumberOfLongTermIncentivePlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:integerItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_NumberofEmployeesMaximumtoReceiveTaxIncentive" name="NumberofEmployeesMaximumtoReceiveTaxIncentive" nillable="true" substitutionGroup="xbrli:item" type="xbrli:decimalItemType" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_OnyxEMSLLCMember" name="OnyxEMSLLCMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_OnyxMember" name="OnyxMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_OrganizationTextBlock" name="OrganizationTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_OtherAssetsLineItems" name="OtherAssetsLineItems" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_OtherAssetsPolicyTextBlock" name="OtherAssetsPolicyTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_OtherAssetsTable" name="OtherAssetsTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_OtherComprehensiveIncomeLossPensionBenefitPlansAdjustmentBeforeTax" name="OtherComprehensiveIncomeLossPensionBenefitPlansAdjustmentBeforeTax" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="spa_OtherComprehensiveIncomeLumpSumSettlementsOfDefinedBenefitPlans" name="OtherComprehensiveIncomeLumpSumSettlementsOfDefinedBenefitPlans" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="duration" />
  <xsd:element id="spa_OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTaxOverNextTwelve" name="OtherComprehensiveIncomeReclassificationOfDefinedBenefitPlansNetGainLossRecognizedInNetPeriodicBenefitCostBeforeTaxOverNextTwelve" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_OtherForeignCountriesMember" name="OtherForeignCountriesMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_OtherNonCurrentAssetsOther" name="OtherNonCurrentAssetsOther" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element id="spa_ParticipantsMaximumPercentageContributionOfCompensationToCompanysDefinedContributionPlan" name="ParticipantsMaximumPercentageContributionOfCompensationToCompanysDefinedContributionPlan" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_ParticipantsMaximumPercentageOfEligibleCompensationContributionForCompanysMatch" name="ParticipantsMaximumPercentageOfEligibleCompensationContributionForCompanysMatch" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_PercentageOfAntiSubmarineWarfareDevicesAndRelatedEngineeringContractServicesSalesToNetSales" name="PercentageOfAntiSubmarineWarfareDevicesAndRelatedEngineeringContractServicesSalesToNetSales" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_PercentageOfCertainFutureEnvironmentalExpensesInExcess" name="PercentageOfCertainFutureEnvironmentalExpensesInExcess" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_PeriodForEnvironmentalRemediationCosts" name="PeriodForEnvironmentalRemediationCosts" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_PrepaidBenefitCost" name="PrepaidBenefitCost" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="debit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_ProductionTransferMember" name="ProductionTransferMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_RegisteredInvestmentCompaniesIntermediateBondMember" name="RegisteredInvestmentCompaniesIntermediateBondMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_RegisteredInvestmentCompaniesInternationalMember" name="RegisteredInvestmentCompaniesInternationalMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_RegisteredInvestmentCompaniesMidCapGrowthMember" name="RegisteredInvestmentCompaniesMidCapGrowthMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_RegisteredInvestmentCompaniesMidCapValueMember" name="RegisteredInvestmentCompaniesMidCapValueMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_RegisteredInvestmentCompaniesSmallCapMember" name="RegisteredInvestmentCompaniesSmallCapMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_RotatingTermsOfEmployeesOfErapsco" name="RotatingTermsOfEmployeesOfErapsco" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_SalesToCustomersByCountryAbstract" name="SalesToCustomersByCountryAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_SalesToIndividualCustomersAboveTenPercent" name="SalesToIndividualCustomersAboveTenPercent" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_SalesToIndividualCustomersAbstract" name="SalesToIndividualCustomersAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_SalesToIndividualCustomersTableTextBlock" name="SalesToIndividualCustomersTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ScheduleOfBusinessGeographicAndSalesConcentrationTable" name="ScheduleOfBusinessGeographicAndSalesConcentrationTable" nillable="true" substitutionGroup="xbrldt:hypercubeItem" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_ScheduleOfNetDeferredIncomeTaxAssetsByBalanceSheetsLocationTableTextBlock" name="ScheduleOfNetDeferredIncomeTaxAssetsByBalanceSheetsLocationTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_ScheduleOfShareBasedCompensationRestrictedStockAwardActivityTableTextBlock" name="ScheduleOfShareBasedCompensationRestrictedStockAwardActivityTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAndWeightedAverageExercisePriceAbstract" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingAndWeightedAverageExercisePriceAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTerm" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageRemainingContractualTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_ShareBasedCompensationArrangementByShareBasedPaymentAwardPeriodTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardPeriodTerms" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_ShareBasedCompensationArrangementsByShareBasedPaymentAwardPlanTerm" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardPlanTerm" nillable="true" substitutionGroup="xbrli:item" type="xbrli:durationItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_ShareBasedCompensationRestrictedStockAwardActivityAbstract" name="ShareBasedCompensationRestrictedStockAwardActivityAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsIntrinsicValue" name="ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeOutstandingOptionsIntrinsicValue" nillable="true" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType" xbrli:balance="credit" xbrli:periodType="instant" />
  <xsd:element abstract="true" id="spa_ShareRepurchaseProgramMember" name="ShareRepurchaseProgramMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_SiemensDiagnosticMember" name="SiemensDiagnosticMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_StockBasedCompensationTextualAbstract" name="StockBasedCompensationTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_StockIssuedDuringPeriodSharesShareBasedCompensationExpired" name="StockIssuedDuringPeriodSharesShareBasedCompensationExpired" nillable="true" substitutionGroup="xbrli:item" type="xbrli:sharesItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_StockRepurchasePlanTextBlock" name="StockRepurchasePlanTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_StockRepurchasePlanTextualAbstract" name="StockRepurchasePlanTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_SummaryOfChangesInBenefitObligationsPlanAssetsAndFundedStatusOfPlanTableTextBlock" name="SummaryOfChangesInBenefitObligationsPlanAssetsAndFundedStatusOfPlanTableTextBlock" nillable="true" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_SummaryOfSignificantAccountingPoliciesDetailsTextualAbstract" name="SummaryOfSignificantAccountingPoliciesDetailsTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_SummaryOfSignificantAccountingPoliciesTextualAbstract" name="SummaryOfSignificantAccountingPoliciesTextualAbstract" nillable="true" substitutionGroup="xbrli:item" type="xbrli:stringItemType" xbrli:periodType="duration" />
  <xsd:element id="spa_TaxHolidayTaxRate" name="TaxHolidayTaxRate" nillable="true" substitutionGroup="xbrli:item" type="num:percentItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_TestEquipmentMember" name="TestEquipmentMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_TwoZeroOneZeroPlanMember" name="TwoZeroOneZeroPlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_TwoZeroZeroOnePlanMember" name="TwoZeroZeroOnePlanMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
  <xsd:element abstract="true" id="spa_UsNavyMember" name="UsNavyMember" nillable="true" substitutionGroup="xbrli:item" type="nonnum:domainItemType" xbrli:periodType="duration" />
</xsd:schema>


