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  <xs:element id="msa_BreathingApparatusMember" abstract="true" name="BreathingApparatusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_RestrictedStockActivityMember" abstract="true" name="RestrictedStockActivityMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_CumulativeTraumaReportedClaimsMember" abstract="true" name="CumulativeTraumaReportedClaimsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_ProductLiabilityIncurredButNotYetPaid" abstract="false" name="ProductLiabilityIncurredButNotYetPaid" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_EmployeeStockPurchasePlanMember" abstract="true" name="EmployeeStockPurchasePlanMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_IncomeTaxValuationAllowanceMember" abstract="true" name="IncomeTaxValuationAllowanceMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_RestrictedCashCurrentAssetsIncludedinPrepaidExpensesandOtherCurrentAssets" abstract="false" name="RestrictedCashCurrentAssetsIncludedinPrepaidExpensesandOtherCurrentAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_FederalFundsOpenRateMember" abstract="true" name="FederalFundsOpenRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_ProductLiabilityExpense" abstract="false" name="ProductLiabilityExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_NoncontrollingInterestOwnershipPercentagePurchased" abstract="false" name="NoncontrollingInterestOwnershipPercentagePurchased" nillable="true" xbrli:periodType="instant" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="msa_DefinedBenefitPlanAlternativeInvestmentsFairValueOfPlanAssets" abstract="false" name="DefinedBenefitPlanAlternativeInvestmentsFairValueOfPlanAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_LossContingencyQuantitiesRollForward" abstract="true" name="LossContingencyQuantitiesRollForward" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="msa_OtherExcludingUnitedStatesMember" abstract="true" name="OtherExcludingUnitedStatesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_PercentageOfTargetAwardBasedOnAchievingTargetedTotalShareholderReturnBasedOnWhichFinalNumberOfSharesToBeIssuedForPerformanceStockUnits" abstract="false" name="PercentageOfTargetAwardBasedOnAchievingTargetedTotalShareholderReturnBasedOnWhichFinalNumberOfSharesToBeIssuedForPerformanceStockUnits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="msa_OtherProductsMember" abstract="true" name="OtherProductsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_JointVentureByRQInsuranceHoldingsLtdAndObraCapitalIncMember" abstract="true" name="JointVentureByRQInsuranceHoldingsLtdAndObraCapitalIncMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_LongLivedAssetsByGeographicalAreasLineItems" abstract="true" name="LongLivedAssetsByGeographicalAreasLineItems" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="msa_SeniorRevolvingCreditFacilityMaturingIn2026Member" abstract="true" name="SeniorRevolvingCreditFacilityMaturingIn2026Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_PortableInstrumentsMember" abstract="true" name="PortableInstrumentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_CapitalStockDisclosureTableTextBlock" abstract="false" name="CapitalStockDisclosureTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:textBlockItemType"/>
  <xs:element id="msa_AdjustedOperatingMarginPercent" abstract="false" name="AdjustedOperatingMarginPercent" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="msa_CashBalanceAmountOffsetAgainstCollateral" abstract="false" name="CashBalanceAmountOffsetAgainstCollateral" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_RestrictedStockVestDateYears" abstract="false" name="RestrictedStockVestDateYears" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="msa_ShareBasedPaymentAwardRetirementEligibleParticipantsExpenseAcceleratedPeriod" abstract="false" name="ShareBasedPaymentAwardRetirementEligibleParticipantsExpenseAcceleratedPeriod" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:durationItemType"/>
  <xs:element id="msa_SecondCumulativePreferredVotingStockMember" abstract="true" name="SecondCumulativePreferredVotingStockMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <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_EstimatedFuturePercentageOfHealthCareBenefits" abstract="false" name="EstimatedFuturePercentageOfHealthCareBenefits" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:percentItemType"/>
  <xs:element id="msa_IntangibleAssetsAcquired" abstract="false" name="IntangibleAssetsAcquired" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_IncomeTaxExpenseBenefitCurrentAbstract" abstract="true" name="IncomeTaxExpenseBenefitCurrentAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
  <xs:element id="msa_Paymentsonproductliabilityclaims" abstract="false" name="Paymentsonproductliabilityclaims" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_NotesLoansandFinancingReceivableInsuranceCompaniesAdditions" abstract="false" name="NotesLoansandFinancingReceivableInsuranceCompaniesAdditions" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_ExercisePriceRange3301To4500Member" abstract="true" name="ExercisePriceRange3301To4500Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_PaymentsToAcquireAdditionalInterestInSubsidiariesDividend" abstract="false" name="PaymentsToAcquireAdditionalInterestInSubsidiariesDividend" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_MulticurrencyNotesDuein2031Member" abstract="true" name="MulticurrencyNotesDuein2031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_NotesLoansandFinancingReceivableInsuranceCompaniesProceeds" abstract="false" name="NotesLoansandFinancingReceivableInsuranceCompaniesProceeds" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_InsuranceContractsMember" abstract="true" name="InsuranceContractsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_OvernightBankFundingRateMember" abstract="true" name="OvernightBankFundingRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_IntangibleAssetsMember" abstract="true" name="IntangibleAssetsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_NYLNoteFacilitySeniorUnsecuredNotesMember" abstract="true" name="NYLNoteFacilitySeniorUnsecuredNotesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_IncreaseDecreaseToValuationAndQualifyingAccountsForForeignCurrencyTranslationAdjustment" abstract="false" name="IncreaseDecreaseToValuationAndQualifyingAccountsForForeignCurrencyTranslationAdjustment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_InternationalSegmentMember" abstract="true" name="InternationalSegmentMember" 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_BusinessCombinationStepUpToFairValueOfAcquiredInventoryAspartOfPurchasePriceAllocation" abstract="false" name="BusinessCombinationStepUpToFairValueOfAcquiredInventoryAspartOfPurchasePriceAllocation" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_NotesLoansandFinancingReceivableNetInsuranceCompaniesNoncurrent" abstract="false" name="NotesLoansandFinancingReceivableNetInsuranceCompaniesNoncurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_NotesLoansandFinancingReceivableNetInsuranceCompaniesCurrent" abstract="false" name="NotesLoansandFinancingReceivableNetInsuranceCompaniesCurrent" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_NonoperatingPensionIncomeExpense" abstract="false" name="NonoperatingPensionIncomeExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_RecognizedTaxBenefits" abstract="false" name="RecognizedTaxBenefits" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_MSALLCMember" abstract="true" name="MSALLCMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="dtr-types:domainItemType"/>
  <xs:element id="msa_CashBalanceCollateralObligationToReturnCash" abstract="false" name="CashBalanceCollateralObligationToReturnCash" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
  <xs:element id="msa_ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardPlanNameAxis" abstract="true" name="ScheduleOfShareBasedCompensationArrangementsByShareBasedPaymentAwardPlanNameAxis" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrldt:dimensionItem" type="xbrli:stringItemType"/>
</xs:schema>
