-----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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 jzIo7zWELefMGwn2R+ZoAw==

<SEC-DOCUMENT>0000914317-10-001398.txt : 20100823
<SEC-HEADER>0000914317-10-001398.hdr.sgml : 20100823
<ACCEPTANCE-DATETIME>20100823153031
ACCESSION NUMBER:		0000914317-10-001398
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100819
FILED AS OF DATE:		20100823
DATE AS OF CHANGE:		20100823

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			St Pierre Mark Francis
		CENTRAL INDEX KEY:			0001469113

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-04383
		FILM NUMBER:		101032426

	MAIL ADDRESS:	
		STREET 1:		13 SECLUDED RIDGE
		CITY:			SOUTHWICK
		STATE:			MA
		ZIP:			01077

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ESPEY MFG & ELECTRONICS CORP
		CENTRAL INDEX KEY:			0000033533
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPONENTS, NEC [3679]
		IRS NUMBER:				141387171
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		233 BALLSTON AVE
		STREET 2:		COR. CONGRESS & BALLSTON AVES.
		CITY:			SARATOGA SPRINGS
		STATE:			NY
		ZIP:			12866
		BUSINESS PHONE:		5185844100

	MAIL ADDRESS:	
		STREET 1:		233 BALLSTON AVE
		CITY:			SARATOGA SPRINGS
		STATE:			NY
		ZIP:			12866

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ESPEY MANUFACTURING & ELECTRONICS CORP
		DATE OF NAME CHANGE:	19920703
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>form4-110011_msex.xml
<DESCRIPTION>4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-08-19</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000033533</issuerCik>
        <issuerName>ESPEY MFG &amp; ELECTRONICS CORP</issuerName>
        <issuerTradingSymbol>ESP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001469113</rptOwnerCik>
            <rptOwnerName>St Pierre Mark Francis</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>13 SECLUDED RIDGE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SOUTHWICK</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>01077</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President/CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>15.95</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2011-08-03</value>
            </exerciseDate>
            <expirationDate>
                <value>2015-08-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>2500</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>19.20</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2010-08-19</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>4000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2010-08-19</value>
            </exerciseDate>
            <expirationDate>
                <value>2020-08-19</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>4000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>6500</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <ownerSignature>
        <signatureName>/s/ Mark F. St. Pierre</signatureName>
        <signatureDate>2010-08-23</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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