<SEC-DOCUMENT>0000891839-12-000068.txt : 20120806
<SEC-HEADER>0000891839-12-000068.hdr.sgml : 20120806
<ACCEPTANCE-DATETIME>20120806170258
ACCESSION NUMBER:		0000891839-12-000068
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20120802
FILED AS OF DATE:		20120806
DATE AS OF CHANGE:		20120806

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BIDLACK JERALD D
		CENTRAL INDEX KEY:			0001235788

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-08462
		FILM NUMBER:		121010461

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GRAHAM CORP
		CENTRAL INDEX KEY:			0000716314
		STANDARD INDUSTRIAL CLASSIFICATION:	GENERAL INDUSTRIAL MACHINERY & EQUIPMENT [3560]
		IRS NUMBER:				161194720
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0331

	BUSINESS ADDRESS:	
		STREET 1:		20 FLORENCE AVE
		CITY:			BATAVIA
		STATE:			NY
		ZIP:			14020
		BUSINESS PHONE:		5853432216

	MAIL ADDRESS:	
		STREET 1:		20 FLORENCE AVENUE
		CITY:			BATAVIA
		STATE:			NY
		ZIP:			14020
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
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<DESCRIPTION>PRIMARY DOCUMENT
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    <periodOfReport>2012-08-02</periodOfReport>

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        <issuerName>GRAHAM CORP</issuerName>
        <issuerTradingSymbol>GHM</issuerTradingSymbol>
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            <rptOwnerCik>0001235788</rptOwnerCik>
            <rptOwnerName>BIDLACK JERALD D</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O GRAHAM CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>20 FLORENCE AVENUE</rptOwnerStreet2>
            <rptOwnerCity>BATAVIA</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>14020</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
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                <transactionCode>S</transactionCode>
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            <transactionAmounts>
                <transactionShares>
                    <value>200</value>
                </transactionShares>
                <transactionPricePerShare>
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                <transactionAcquiredDisposedCode>
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        </nonDerivativeTransaction>
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    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>30.875</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2012-05-29</value>
            </exerciseDate>
            <expirationDate>
                <value>2018-05-29</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
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        <derivativeHolding>
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                <underlyingSecurityTitle>
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                <sharesOwnedFollowingTransaction>
                    <value>106.15</value>
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                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                    <value>78.42</value>
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                <sharesOwnedFollowingTransaction>
                    <value>78.42</value>
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                <directOrIndirectOwnership>
                    <value>D</value>
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                    <value></value>
                </natureOfOwnership>
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        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Share Equivalent Unit</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F2"/>
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                </sharesOwnedFollowingTransaction>
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                </natureOfOwnership>
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        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This option was previously reported by Mr. Bidlack.</footnote>
        <footnote id="F2">This share equivalent unit was granted under the Graham Corporation Outside Directors' Long Term Incentive Plan, as amended. Under the LTIP, SEUs are credited to each non-employee director's account for each of the first five fiscal years during such director's term in which Graham produces consolidated net income in an amount at least equal to the consolidated net income specified in the budget for each such fiscal year. Such determinations are made annually. Each SEU is valued at the market value of one share of common stock on the valuation date, which is the last day of trading of the first quarter following the end of a fiscal year for which SEUs are to be credited. The number of SEUs to be credited annually is determined by dividing the value of one SEU into $10,000.</footnote>
        <footnote id="F3">Outstanding SEUs accrue dividends quarterly in accordance with Graham's regular dividend policy and such dividends are reflected in each director's account after the end of each fiscal year. The number of SEUs reported represent dividends accrued under the LTIP. Upon termination of a non-employee director's service, but not before, the non-employee director may redeem each SEU for one share of common stock or, alternatively and subject to Graham's discretion, for the cash equivalent at the closing price of the stock on the NYSE MKT on the date of termination of service, subject to certain limitations.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Jerald D. Bidlack</signatureName>
        <signatureDate>2012-08-06</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</DOCUMENT>
</SEC-DOCUMENT>
