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  <xs:element id="msa_LineOfCreditFacilityAccordionFeatureAmount" abstract="false" name="LineOfCreditFacilityAccordionFeatureAmount" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_DebtInstrumentPrincipalAmountDueInYearBeforeMaturity" abstract="false" name="DebtInstrumentPrincipalAmountDueInYearBeforeMaturity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_DebtInstrumentPrincipalAmountDueAtMaturity" abstract="false" name="DebtInstrumentPrincipalAmountDueAtMaturity" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_DebtInstrumentCovenantFixedChargesCoverageRatioMinimum" abstract="false" name="DebtInstrumentCovenantFixedChargesCoverageRatioMinimum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="msa_DebtInstrumentCovenantConsolidatedLeverageRatioMaximum" abstract="false" name="DebtInstrumentCovenantConsolidatedLeverageRatioMaximum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="msa_DebtInstrumentCovenantConsolidatedLeverageRatioInPeriodOfAcquisitionMaximum" abstract="false" name="DebtInstrumentCovenantConsolidatedLeverageRatioInPeriodOfAcquisitionMaximum" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:pureItemType"/>
  <xs:element id="msa_LineOfCreditFacilityAmountFinancedIncludingCash" abstract="false" name="LineOfCreditFacilityAmountFinancedIncludingCash" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_GlobeHoldingCompanyLLCMember" abstract="true" name="GlobeHoldingCompanyLLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_FiniteLivedIntangibleAssetExpectedAmortizationYearsOneThroughFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationYearsOneThroughFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" abstract="false" name="FiniteLivedIntangibleAssetExpectedAmortizationAfterYearFour" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedAssetsIncludingGoodwill" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_DamagesFromProductSubstancesMember" abstract="true" name="DamagesFromProductSubstancesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_LossContingencyPendingLawsuitsNumber" abstract="false" name="LossContingencyPendingLawsuitsNumber" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
  <xs:element id="msa_AutronicaMember" abstract="true" name="AutronicaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
</xs:schema>
