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  <xs:element id="dco_DebtInstrumentCovenant25OfExcessCashFlowAmountMember" abstract="true" name="DebtInstrumentCovenant25OfExcessCashFlowAmountMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="dco_ProceedsReceivedFromGrants" abstract="false" name="ProceedsReceivedFromGrants" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="dco_PaymentsFromIssuanceofStockUnderAwardPlansNet" abstract="false" name="PaymentsFromIssuanceofStockUnderAwardPlansNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="dco_DebtInstrumentPercentageofExcessCashFlowPaymentWhenLeverageRatioisGreaterthan3.25" abstract="false" name="DebtInstrumentPercentageofExcessCashFlowPaymentWhenLeverageRatioisGreaterthan3.25" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="dco_RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract" abstract="true" name="RightOfUseAssetsObtainedInExchangeForLeaseObligationsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
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  <xs:element id="dco_StockOptionsAndRestrictedStockUnitsMember" abstract="true" name="StockOptionsAndRestrictedStockUnitsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="dco_LesseeOperatingLeaseLeaseNotYetCommencedAmount" abstract="false" name="LesseeOperatingLeaseLeaseNotYetCommencedAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="dco_LesseeOperatingLeaseLiabilityPaymentsDueWithOptionToExtend" abstract="false" name="LesseeOperatingLeaseLiabilityPaymentsDueWithOptionToExtend" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_PerformanceBasedWithMarketConditionCashSettledLongTermIncentiveAwardsMember" abstract="true" name="PerformanceBasedWithMarketConditionCashSettledLongTermIncentiveAwardsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="dco_SharebasedCompensationArrangementbySharebasedPaymentAwardMaximumPercentageofEmployeeCompensationforPurchaseofCommonStock" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardMaximumPercentageofEmployeeCompensationforPurchaseofCommonStock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
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  <xs:element id="dco_BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredGoodwillAndLiabilitiesAssumedAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
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  <xs:element id="dco_SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofIncentivePlans" abstract="false" name="SharebasedCompensationArrangementbySharebasedPaymentAwardNumberofIncentivePlans" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
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  <xs:element id="dco_IncreaseDecreaseinProductionCostofContract" abstract="false" name="IncreaseDecreaseinProductionCostofContract" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_LossContingencyNumberOfBuildingsAffected" abstract="false" name="LossContingencyNumberOfBuildingsAffected" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="dco_DebtInstrumentPercentageofExcessCashFlowPaymentWhenLeverageRatioisLessthanorEqualto3.25" abstract="false" name="DebtInstrumentPercentageofExcessCashFlowPaymentWhenLeverageRatioisLessthanorEqualto3.25" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dco_DefinedBenefitPlanAmortizationOfUnrecognizedGainsLosses" abstract="false" name="DefinedBenefitPlanAmortizationOfUnrecognizedGainsLosses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_ElectronicSystemsSegmentMember" abstract="true" name="ElectronicSystemsSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
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  <xs:element id="dco_MagneticSealCorporationMember" abstract="true" name="MagneticSealCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_LeaseWeightedAverageDiscountRateAbstract" abstract="true" name="LeaseWeightedAverageDiscountRateAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dco_DeferredTaxAssetsPension" abstract="false" name="DeferredTaxAssetsPension" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_DebtInstrumentConvenantDomain" abstract="true" name="DebtInstrumentConvenantDomain" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_NumberOfUnfundedSupplementalRetirementPlans" abstract="false" name="NumberOfUnfundedSupplementalRetirementPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="dco_DebtInstrumentCovenantAdjustedLeverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantAdjustedLeverageRatioMinimum" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="dco_IncreaseDecreaseinRevenuefromContractwithCustomers" abstract="false" name="IncreaseDecreaseinRevenuefromContractwithCustomers" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_GeneralDynamicsCorporationMember" abstract="true" name="GeneralDynamicsCorporationMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageExercisePriceAbstract" abstract="true" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsWeightedAverageExercisePriceAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dco_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedOperatingLeaseRightOfUseAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod" abstract="false" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOfferingPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="dco_FinancingReceivableAllowanceForCreditLossPolicyTextBlock" abstract="false" name="FinancingReceivableAllowanceForCreditLossPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="dco_SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" abstract="true" name="SharebasedCompensationArrangementbySharebasedPaymentAwardOptionsAggregateIntrinsicValueAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dco_DeferredTaxAssetsEnvironmentalReserves" abstract="false" name="DeferredTaxAssetsEnvironmentalReserves" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_LocationTwoMember" abstract="true" name="LocationTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_DeferredTaxAssetsOperatingLeaseLiability" abstract="false" name="DeferredTaxAssetsOperatingLeaseLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_ExecutivesandDirectorsMember" abstract="true" name="ExecutivesandDirectorsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_DebtInstrumentQuarterlyPrepaymentYearThreeAndYearFourMember" abstract="true" name="DebtInstrumentQuarterlyPrepaymentYearThreeAndYearFourMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_DefinedBenefitPlanFairValueofPlanAssetsNotIncludingPooledFunds" abstract="false" name="DefinedBenefitPlanFairValueofPlanAssetsNotIncludingPooledFunds" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_ContractRenewalMember" abstract="true" name="ContractRenewalMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_New2018RevolvingCreditFacilityMaturingNovember212023Member" abstract="true" name="New2018RevolvingCreditFacilityMaturingNovember212023Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_CapitalExpenditures" abstract="false" name="CapitalExpenditures" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_PensionAdjustmentsAbstract" abstract="true" name="PensionAdjustmentsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dco_GoodwillAndIntangibleAssetsLineItems" abstract="true" name="GoodwillAndIntangibleAssetsLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dco_AccruedBenefitLiability" abstract="false" name="AccruedBenefitLiability" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_DebtInstrumentQuarterlyPrepaymentYearOneAndYearTwoMember" abstract="true" name="DebtInstrumentQuarterlyPrepaymentYearOneAndYearTwoMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_SignificantAccountingPoliciesLineItems" abstract="true" name="SignificantAccountingPoliciesLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dco_RightOfUseAssetAmortization" abstract="false" name="RightOfUseAssetAmortization" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_SpiritAerosystemsMember" abstract="true" name="SpiritAerosystemsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_WeightedAverageNumberOfShareOutstandingAbstract" abstract="true" name="WeightedAverageNumberOfShareOutstandingAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="dco_LeaseRemainingLeaseTerm" abstract="false" name="LeaseRemainingLeaseTerm" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="dco_GuaranteesAndIndemnificationsTextBlock" abstract="false" name="GuaranteesAndIndemnificationsTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="dco_NumberOfDefinedContributionPlans" abstract="false" name="NumberOfDefinedContributionPlans" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="dco_New2018TermLoanMaturingNovember212025Member" abstract="true" name="New2018TermLoanMaturingNovember212025Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_NoncashGainsLossesonExtinguishmentofDebt" abstract="false" name="NoncashGainsLossesonExtinguishmentofDebt" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_TaxBenefitForExerciseOfStockOptionsAndIssuanceOfSharesUponVestingOfRestrictedStockGrants" abstract="false" name="TaxBenefitForExerciseOfStockOptionsAndIssuanceOfSharesUponVestingOfRestrictedStockGrants" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="dco_DebtInstrumentConvenantAxis" abstract="true" name="DebtInstrumentConvenantAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
  <xs:element id="dco_DebtInstrumentPercentageofExcessCashFlowPaymentWhenLeverageRatioisLessThanorEqualto2.50" abstract="false" name="DebtInstrumentPercentageofExcessCashFlowPaymentWhenLeverageRatioisLessThanorEqualto2.50" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="dco_DefinedContributionPlansParticipantGroupOneMember" abstract="true" name="DefinedContributionPlansParticipantGroupOneMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_PropertyAndEquipmentImpairmentMember" abstract="true" name="PropertyAndEquipmentImpairmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="dco_DeferredTaxAssetsAccruedExpenses" abstract="false" name="DeferredTaxAssetsAccruedExpenses" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>
