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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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 Ti13g8iMxBrvQ+o5VdaTuw==

<SEC-DOCUMENT>0001209191-05-013869.txt : 20050304
<SEC-HEADER>0001209191-05-013869.hdr.sgml : 20050304
<ACCEPTANCE-DATETIME>20050304161944
ACCESSION NUMBER:		0001209191-05-013869
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20050302
FILED AS OF DATE:		20050304
DATE AS OF CHANGE:		20050304

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HEI INC
		CENTRAL INDEX KEY:			0000351298
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				410944876
		STATE OF INCORPORATION:			MN
		FISCAL YEAR END:			0831

	BUSINESS ADDRESS:	
		STREET 1:		1495 STEIGER LAKE LN
		STREET 2:		P O BOX 5000
		CITY:			VICTORIA
		STATE:			MN
		ZIP:			55386
		BUSINESS PHONE:		9524432500

	MAIL ADDRESS:	
		STREET 1:		P O BOX 5000
		STREET 2:		1495 STEIGER LAKE LANE
		CITY:			VICTORIA
		STATE:			MN
		ZIP:			55386

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			LEISZ DENNIS J
		CENTRAL INDEX KEY:			0001267933

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10078
		FILM NUMBER:		05661547

	MAIL ADDRESS:	
		STREET 1:		1495 STEIGER LAKE LANE
		CITY:			VICTORIA
		STATE:			MN
		ZIP:			85386
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>bmn92852_bmn1djl.xml
<DESCRIPTION>MAIN DOCUMENT DESCRIPTION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2005-03-02</periodOfReport>

    <issuer>
        <issuerCik>0000351298</issuerCik>
        <issuerName>HEI INC</issuerName>
        <issuerTradingSymbol>HEII</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001267933</rptOwnerCik>
            <rptOwnerName>LEISZ DENNIS J</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>PO BOX 5000</rptOwnerStreet1>
            <rptOwnerStreet2>1495 STEIGER LAKE LANE</rptOwnerStreet2>
            <rptOwnerCity>VICTORIA</rptOwnerCity>
            <rptOwnerState>MN</rptOwnerState>
            <rptOwnerZipCode>55386</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable></nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option Right to Buy</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>3.27</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2005-03-02</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>3.27</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2015-03-02</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The options will vest and become exercisable on the earlier of (i) the seventh anniversary of the date of grant, (ii) the first date after the date of grant on which the market value per share of HEI common stock equals or exceeds $25.00, (iii) the date of Mr. Leisz's death or disability or (iv) the effective date of a change of control.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/S/ Mack V. Traynor, III - Attorney In Fact</signatureName>
        <signatureDate>2004-03-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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