<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:ns2="http://www.sec.gov/edgar/common">
    <headerData>
        <submissionType>144</submissionType>
        <filerInfo>
            <filer>
                <filerCredentials>
                    <cik>0001564614</cik>
                    <ccc>XXXXXXXX</ccc>
                </filerCredentials>
            </filer>
            <liveTestFlag>LIVE</liveTestFlag>



        </filerInfo>
    </headerData>
    <formData>
        <issuerInfo>
            <issuerCik>0000066570</issuerCik>
            <issuerName>MSA SAFETY INC</issuerName>
            <secFileNumber>001-15579</secFileNumber>
            <issuerAddress>
                <ns2:street1>1000 Cranberry Woods Drive</ns2:street1>
                <ns2:city>Cranberry Township</ns2:city>
                <ns2:stateOrCountry>PA</ns2:stateOrCountry>
                <ns2:zipCode>16066</ns2:zipCode>
            </issuerAddress>
            <issuerContactPhone>(724) 776-8600</issuerContactPhone>
            <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>NISHAN J VARTANIAN</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
            <relationshipsToIssuer>
                <relationshipToIssuer>Officer</relationshipToIssuer>
            </relationshipsToIssuer>
        </issuerInfo>
        <securitiesInformation>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <brokerOrMarketmakerDetails>
                <name>Morgan Stanley Smith Barney LLC Executive Financial Services</name>
                <address>
                    <ns2:street1>1 New York Plaza</ns2:street1>
                    <ns2:street2>8th Floor</ns2:street2>
                    <ns2:city>New York</ns2:city>
                    <ns2:stateOrCountry>NY</ns2:stateOrCountry>
                    <ns2:zipCode>10004</ns2:zipCode>
                </address>
            </brokerOrMarketmakerDetails>
            <noOfUnitsSold>10630</noOfUnitsSold>
            <aggregateMarketValue>1943727.39</aggregateMarketValue>
            <noOfUnitsOutstanding>39318501</noOfUnitsOutstanding>
            <approxSaleDate>03/01/2024</approxSaleDate>
            <securitiesExchangeName>NYSE</securitiesExchangeName>
        </securitiesInformation>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/08/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>3355</amountOfSecuritiesAcquired>
            <paymentDate>03/08/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>03/08/2022</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>5768</amountOfSecuritiesAcquired>
            <paymentDate>03/08/2022</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <securitiesToBeSold>
            <securitiesClassTitle>Common</securitiesClassTitle>
            <acquiredDate>06/26/2020</acquiredDate>
            <natureOfAcquisitionTransaction>Performance Stock Units</natureOfAcquisitionTransaction>
            <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
            <isGiftTransaction>N</isGiftTransaction>
            <amountOfSecuritiesAcquired>1507</amountOfSecuritiesAcquired>
            <paymentDate>06/26/2020</paymentDate>
            <natureOfPayment>Not Applicable</natureOfPayment>
        </securitiesToBeSold>
        <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
        <noticeSignature>
            <noticeDate>03/01/2024</noticeDate>
            <planAdoptionDates/>
            <signature>/s/ Nishan J Vartanian</signature>
        </noticeSignature>
    </formData>
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144
0001564614
XXXXXXXX
LIVE
0000066570
MSA SAFETY INC
001-15579
1000 Cranberry Woods Drive
Cranberry Township
PA
16066
(724) 776-8600
NISHAN J VARTANIAN
Officer
Common
Morgan Stanley Smith Barney LLC Executive Financial Services
1 New York Plaza
8th Floor
New York
NY
10004
10630
1943727.39
39318501
03/01/2024
NYSE
Common
03/08/2022
Performance Stock Units
Issuer
N
3355
03/08/2022
Not Applicable
Common
03/08/2022
Performance Stock Units
Issuer
N
5768
03/08/2022
Not Applicable
Common
06/26/2020
Performance Stock Units
Issuer
N
1507
06/26/2020
Not Applicable
Y
03/01/2024
/s/ Nishan J Vartanian