content: <?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
    <headerData>
      <submissionType>144</submissionType>
      <filerInfo>
        <filer>
          <filerCredentials>
            <!-- Field: Pseudo-Tag; ID: Name; Data: GERSHWIND ERIK -->
            <cik>0001200390</cik>
            <ccc>XXXXXXXX</ccc>
          </filerCredentials>
        </filer>
        <liveTestFlag>LIVE</liveTestFlag>
  
  
  
      </filerInfo>
    </headerData>
    <formData>
      <issuerInfo>
        <issuerCik>0001003078</issuerCik>
        <issuerName>MSC INDUSTRIAL DIRECT CO INC</issuerName>
        <secFileNumber>001-14130</secFileNumber>
        <issuerAddress>
          <com:street1>515 BROADHOLLOW ROAD</com:street1>
          <com:city>MELVILLE</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>11747</com:zipCode>
        </issuerAddress>
        <issuerContactPhone>516-812-2000</issuerContactPhone>
        <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>GERSHWIND ERIK</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
        <relationshipsToIssuer>
          <relationshipToIssuer>Director</relationshipToIssuer>
          <relationshipToIssuer>Officer</relationshipToIssuer>
        </relationshipsToIssuer>
      </issuerInfo>
      <securitiesInformation>
        <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
        <brokerOrMarketmakerDetails>
          <name>UBS Financial Services Inc</name>
          <address>
            <com:street1>1285 Avenue of the Americas</com:street1>
            <com:city>New York</com:city>
            <com:stateOrCountry>NY</com:stateOrCountry>
            <com:zipCode>10019</com:zipCode>
          </address>
        </brokerOrMarketmakerDetails>
        <noOfUnitsSold>2000</noOfUnitsSold>
        <aggregateMarketValue>179220.00</aggregateMarketValue>
        <noOfUnitsOutstanding>55675778</noOfUnitsOutstanding>
        <approxSaleDate>07/03/2025</approxSaleDate>
        <securitiesExchangeName>NYSE</securitiesExchangeName>
      </securitiesInformation>
      <securitiesToBeSold>
        <securitiesClassTitle>Class A Common Stock</securitiesClassTitle>
        <acquiredDate>07/03/2025</acquiredDate>
        <natureOfAcquisitionTransaction>Equity Plan Award</natureOfAcquisitionTransaction>
        <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
        <isGiftTransaction>N</isGiftTransaction>
        <amountOfSecuritiesAcquired>2000</amountOfSecuritiesAcquired>
        <paymentDate>07/03/2025</paymentDate>
        <natureOfPayment>Equity Plan Award</natureOfPayment>
      </securitiesToBeSold>
      <nothingToReportFlagOnSecuritiesSoldInPast3Months>Y</nothingToReportFlagOnSecuritiesSoldInPast3Months>
      <remarks>Shares to be sold were acquired pursuant to equity plan awards on various dates prior to 07/03/2025.</remarks>
      <noticeSignature>
        <noticeDate>07/03/2025</noticeDate>
        <signature>/s/ J. Robert Small, Attorney-in-Fact for Erik Gershwind</signature>
      </noticeSignature>
    </formData>
  </edgarSubmission>
metadata_documents: [{"type": "144", "sequence": "1", "filename": "primary_doc.xml", "secsgml_size_bytes": 3051}]
text: 144
  0001200390
  XXXXXXXX
  LIVE
  0001003078
  MSC INDUSTRIAL DIRECT CO INC
  001-14130
  515 BROADHOLLOW ROAD
  MELVILLE
  NY
  11747
  516-812-2000
  GERSHWIND ERIK
  Director
  Officer
  Class A Common Stock
  UBS Financial Services Inc
  1285 Avenue of the Americas
  New York
  NY
  10019
  2000
  179220.00
  55675778
  07/03/2025
  NYSE
  Class A Common Stock
  07/03/2025
  Equity Plan Award
  Issuer
  N
  2000
  07/03/2025
  Equity Plan Award
  Y
  Shares to be sold were acquired pursuant to equity plan awards on various dates prior to 07/03/2025.
  07/03/2025
  /s/ J. Robert Small, Attorney-in-Fact for Erik Gershwind