-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
 Iq7CJhUh88kO4xSzGjOaqsqqoP8EFnXNwstLLetmHF1bLa4uNsF0E4FRQbtqBisk
 CMGsk1w/f42n04I5LzQqRQ==

<SEC-DOCUMENT>0001223203-03-001318.txt : 20031113
<SEC-HEADER>0001223203-03-001318.hdr.sgml : 20031113
<ACCEPTANCE-DATETIME>20031113124858
ACCESSION NUMBER:		0001223203-03-001318
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20031111
FILED AS OF DATE:		20031113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ZEITLER DENNIS L
		CENTRAL INDEX KEY:			0001118164

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-15579
		FILM NUMBER:		03996831

	BUSINESS ADDRESS:	
		STREET 1:		P.O. BOX 426
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15230
		BUSINESS PHONE:		4129673000

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 426
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15230

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			MINE SAFETY APPLIANCES CO
		CENTRAL INDEX KEY:			0000066570
		STANDARD INDUSTRIAL CLASSIFICATION:	ORTHOPEDIC, PROSTHETIC & SURGICAL APPLIANCES & SUPPLIES [3842]
		IRS NUMBER:				250668780
		STATE OF INCORPORATION:			PA
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		121 GAMMA DR
		STREET 2:		OHARA TOWNSHIP
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15238
		BUSINESS PHONE:		4129673000

	MAIL ADDRESS:	
		STREET 1:		P O BOX 426
		CITY:			PITTSBURGH
		STATE:			PA
		ZIP:			15230
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>zei7.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4/A</documentType>
	<periodOfReport>2003-11-11</periodOfReport>
	<dateOfOriginalSubmission>2003-11-13</dateOfOriginalSubmission>
	<notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000066570</issuerCik>
        <issuerName>MINE SAFETY APPLIANCES CO</issuerName>
        <issuerTradingSymbol>MSA</issuerTradingSymbol>
	</issuer>
	<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001118164</rptOwnerCik>
            <rptOwnerName>ZEITLER DENNIS L</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>P.O. BOX 426</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>PITTSBURGH</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>15230</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
			<isDirector>0</isDirector>
			<isOfficer>1</isOfficer>
			<isTenPercentOwner>0</isTenPercentOwner>
			<isOther>0</isOther>
			<officerTitle>VP, CFO, TReasurer</officerTitle>
		</reportingOwnerRelationship>
	</reportingOwner>
	<nonDerivativeTable>
		<nonDerivativeTransaction>
			<securityTitle>
				<value>Common</value>
				<footnoteId id="F1"/>
			</securityTitle>
			<transactionDate>
				<value>2003-11-11</value>
			</transactionDate>
			<deemedExecutionDate>
			</deemedExecutionDate>
			<transactionCoding>
				<transactionFormType>4</transactionFormType>
				<transactionCode>F</transactionCode>
				<equitySwapInvolved>0</equitySwapInvolved>
			</transactionCoding>
			<transactionAmounts>
				<transactionShares>
					<value>2785</value>
				</transactionShares>
				<transactionPricePerShare>
					<value>60.50</value>
				</transactionPricePerShare>
				<transactionAcquiredDisposedCode>
					<value>D</value>
				</transactionAcquiredDisposedCode>
			</transactionAmounts>
			<postTransactionAmounts>
				<sharesOwnedFollowingTransaction>
					<value>12799</value>
				</sharesOwnedFollowingTransaction>
			</postTransactionAmounts>
			<ownershipNature>
				<directOrIndirectOwnership>
					<value>D</value>
				</directOrIndirectOwnership>
				<natureOfOwnership>
					<value/>
				</natureOfOwnership>
			</ownershipNature>
		</nonDerivativeTransaction>
	</nonDerivativeTable>
	<footnotes>
		<footnote id="F1">In accordance with SEC FAQ #12 on www.sec.gov/divisions/corpfin/sec16faq.htm, this form is not re-reporting a transaction. It is soley to gain access to the online filing site and report a Power of Attorney</footnote>
	</footnotes>
	<remarks>
	</remarks>
	<ownerSignature>
		<signatureName>By: Douglas K. McClaine, Attorney in Fact</signatureName>
		<signatureDate>2003-11-13</signatureDate>
	</ownerSignature>
</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
<DOCUMENT>
<TYPE>EX-24
<SEQUENCE>3
<FILENAME>zpoa2.txt
<TEXT>
                                  POWER OF ATTORNEY

                      To Sign and File Reports under Section 16(a)
                         of the Securities Exchange Act of 1934,
                      under Rule 144 or any other Filings Required
                         Under the Federal Securities Laws
              With Respect to Securities of Mine Safety Appliances Company


                  KNOW ALL MEN BY THESE PRESENTS, that the undersigned hereby
constitutes and appoints Douglas K. McClaine or the General Counsel of Mine
Safety Appliances Company ("MSA"), Dennis L. Zeitler or the Vice
President-Finance of MSA and Nelson W. Winter, and each of them, his or her true
and lawful attorneys-in-fact and agents, with full power of substitution, for
the undersigned and in the undersigned's name, place and stead, to sign any and
all reports of the undersigned under Section 16(a) of the Securities Exchange
Act of 1934, under Rule 144 or any other filings required under the Federal
Securities Laws with respect to securities of MSA, and to file the same with the
Securities and Exchange Commission, granting unto said attorneys-in-fact and
agents, and each of them, full power and authority to do and perform each and
every act and thing requisite and necessary to be done as fully to all intents
and purposes as the undersigned might or could do in person, hereby ratifying
and confirming all that said attorneys-in-fact and agents or any of them, or
his, her or their substitute or substitutes, may lawfully do or cause to be done
by virtue hereof. The undersigned acknowledges that the foregoing
attorneys-in-fact, in serving in such capacity at the request of the
undersigned, are not assuming any of the undersigned's responsibilities to
comply with the Federal Securities Laws.

                  This Power of Attorney shall remain in effect unless and until
notice of its revocation shall have been filed by the undersigned with the
Securities and Exchange Commission.

                  IN WITNESS WHEREOF, the undersigned has executed and delivered
this Power of Attorney the date set forth below.

Date:  August 28, 2002


                           SIGNATURE: /s/D. L. Zeitler

                                                     PRINT NAME:   D. L. Zeitler



</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
