-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 iXJdJl7FWZFoQRzTnY0ipQ==

<SEC-DOCUMENT>0001212262-03-000001.txt : 20030605
<SEC-HEADER>0001212262-03-000001.hdr.sgml : 20030605
<ACCEPTANCE-DATETIME>20030605093530
ACCESSION NUMBER:		0001212262-03-000001
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030605
FILED AS OF DATE:		20030605

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			PENN ENGINEERING & MANUFACTURING CORP
		CENTRAL INDEX KEY:			0000077106
		STANDARD INDUSTRIAL CLASSIFICATION:	BOLTS, NUTS, SCREWS, RIVETS & WASHERS [3452]
		IRS NUMBER:				230951065
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		PO BOX 1000
		CITY:			DANBORO
		STATE:			PA
		ZIP:			18916
		BUSINESS PHONE:		2157668853

	MAIL ADDRESS:	
		STREET 1:		P O BOX 1000
		CITY:			DANBORO
		STATE:			PA
		ZIP:			18916

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			KAY ALAN
		CENTRAL INDEX KEY:			0001212262

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-05356
		FILM NUMBER:		03733349

	BUSINESS ADDRESS:	
		STREET 1:		C/O PENN ENGINEERING & MANUFACT
		STREET 2:		P O BOX 1000
		CITY:			DANBORO
		STATE:			PA
		ZIP:			18916
		BUSINESS PHONE:		2157668853

	MAIL ADDRESS:	
		STREET 1:		P O BOX 1000
		CITY:			DANBORO
		STATE:			PA
		ZIP:			18916
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>

<ownershipDocument>

    <documentType>3</documentType>

    <periodOfReport>2003-06-05</periodOfReport>


    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000077106</issuerCik>
        <issuerName>PENN ENGINEERING &amp; MANUFACTURING CORP</issuerName>
        <issuerTradingSymbol>PNN&amp;PNN.A</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001212262</rptOwnerCik>
            <rptOwnerName>KAY ALAN</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>  </rptOwnerStreet1>
            <rptOwnerStreet2>  </rptOwnerStreet2>
            <rptOwnerCity>  </rptOwnerCity>
            <rptOwnerState>  </rptOwnerState>
            <rptOwnerZipCode>  </rptOwnerZipCode>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President of Arconix/USA</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeSecurity>
        <securityTitle>
            <value>Common Stock, $.01 par value</value>
        </securityTitle>
        <transactionAmounts>
            <transactionShares>
                <value>487.321</value>
                <footnoteId id="F1"/>
            </transactionShares>
        </transactionAmounts>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </nonDerivativeSecurity>

    <derivativeSecurity>
        <securityTitle>
            <value>Employee Stock Option (right to buy)</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>12.688</value>
        </conversionOrExercisePrice>
        <exerciseDate>
            <value>2000-12-08</value>
            <footnoteId id="F2"/>
        </exerciseDate>
        <expirationDate>
            <value>2009-12-08</value>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>2000</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <derivativeSecurity>
        <securityTitle>
            <value>Employee Stock Option (right to buy)</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>18.063</value>
        </conversionOrExercisePrice>
        <exerciseDate>
            <value>2001-12-06</value>
            <footnoteId id="F3"/>
        </exerciseDate>
        <expirationDate>
            <value>2010-12-06</value>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>2000</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <derivativeSecurity>
        <securityTitle>
            <value>Employee Stock Option (right to buy)</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>16.58</value>
        </conversionOrExercisePrice>
        <exerciseDate>
            <value>2002-12-05</value>
            <footnoteId id="F4"/>
        </exerciseDate>
        <expirationDate>
            <value>2011-12-05</value>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>20000</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <derivativeSecurity>
        <securityTitle>
            <value>Employee Stock Option (right to buy)</value>
        </securityTitle>
        <conversionOrExercisePrice>
            <value>11.7</value>
        </conversionOrExercisePrice>
        <exerciseDate>
            <value>2003-12-05</value>
            <footnoteId id="F5"/>
        </exerciseDate>
        <expirationDate>
            <value>2012-12-05</value>
        </expirationDate>
        <underlyingSecurity>
            <underlyingSecurityTitle>
                <value>Common Stock</value>
            </underlyingSecurityTitle>
            <underlyingSecurityShares>
                <value>20000</value>
            </underlyingSecurityShares>
        </underlyingSecurity>
        <ownershipNature>
            <directOrIndirectOwnership>
                <value>D</value>
            </directOrIndirectOwnership>
        </ownershipNature>
    </derivativeSecurity>

    <footnotes>
        <footnote id="F1">Reflects shares purchased under the Penn Engineering &amp; Manufacturing Corp. Stock Purchase Plan.</footnote>
        <footnote id="F2">These options were granted pursuant to Rule 16b-3 under the Company's 1999 Stock Option Plan.  These options vest in four cumulative annual installments of 500 shares each commencing the first anniversary after the grant date 12/08/1999.</footnote>
        <footnote id="F3">These options were granted pursuant to Rule 16b-3 under the Company's 1999 Stock Option Plan.  These options vest in four cumulative annual installments of 500 shares each commencing the first anniversary after the grant date 12/06/2000.</footnote>
        <footnote id="F4">These options were granted pursuant to Rule 16b-3 under the Company's 1999 Stock Option Plan.  These options vest in four cumulative annual installments of 5,000 shares each commencing the first anniversary after the grant date 12/05/2001.</footnote>
        <footnote id="F5">These options were granted pursuant to Rule 16b-3 under the Company's 1999 Stock Option Plan.  These options vest in four cumulative annual installments of 5,000 shares each commencing the first anniversary after the grant date 12/05/2002.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/S/Alan M. Kay</signatureName>
        <signatureDate>2003-06-05</signatureDate>
    </ownerSignature>

</ownershipDocument>

</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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