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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 IqDfFMqzSBEV23eFp9XTjApi4xVfEYvbCXjpGKWJWnED6WmbjNnPRj5tHDCNk4/C
 CMdjvSusLTQ8B+gKzdBQZA==

<SEC-DOCUMENT>0001209191-03-023771.txt : 20031001
<SEC-HEADER>0001209191-03-023771.hdr.sgml : 20031001
<ACCEPTANCE-DATETIME>20031001152611
ACCESSION NUMBER:		0001209191-03-023771
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20030930
FILED AS OF DATE:		20031001

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			HUNTER JOHN C III
		CENTRAL INDEX KEY:			0001181630

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-00496
		FILM NUMBER:		03920426

	BUSINESS ADDRESS:	
		STREET 1:		575 MARYVILLE CENTRE DR
		STREET 2:		P O BOX 66760
		CITY:			ST LOUIS
		STATE:			MO
		ZIP:			63166-6760
		BUSINESS PHONE:		3146741000

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HERCULES INC
		CENTRAL INDEX KEY:			0000046989
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS CHEMICAL PRODUCTS [2890]
		IRS NUMBER:				510023450
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1313 N MARKET ST
		STREET 2:		HERCULES PLAZA
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19894
		BUSINESS PHONE:		3025945000

	MAIL ADDRESS:	
		STREET 1:		HERCULES PLAZA
		STREET 2:		ROOM 8151 NW
		CITY:			WILMINGTON
		STATE:			DE
		ZIP:			19894-0001

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HERCULES POWDER CO
		DATE OF NAME CHANGE:	19680321
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?><ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-09-30</periodOfReport><notSubjectToSection16>0</notSubjectToSection16>
    <issuer>
        <issuerCik>0000046989</issuerCik>
        <issuerName>HERCULES INC</issuerName>
        <issuerTradingSymbol>HPC</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001181630</rptOwnerCik>
            <rptOwnerName>HUNTER JOHN C III</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1313 N. MARKET STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>WILMINGTON</rptOwnerCity>
            <rptOwnerState>DE</rptOwnerState>
            <rptOwnerZipCode>19894</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-09-30</value></transactionDate><deemedExecutionDate></deemedExecutionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionTimeliness><value></value></transactionTimeliness><transactionAmounts><transactionShares><value>308</value></transactionShares><transactionPricePerShare><value>11.33</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value><footnoteId id="F1" /></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>4294</value><footnoteId id="F2" /></sharesOwnedFollowingTransaction></postTransactionAmounts><own
ershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><footnotes><footnote id="F1">Grant of Restricted Stock Units</footnote><footnote id="F2">Of these, 2,250 are Restricted Stock and 2,004 are Restricted Stock Units.</footnote></footnotes><remarks></remarks><ownerSignature><signatureName>/s/ Israel J. Floyd
Acting as Attorney In Fact for John C. Hunter, III</signatureName><signatureDate>2003-10-01</signatureDate></ownerSignature></ownershipDocument>

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</TEXT>
</DOCUMENT>
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