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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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 zlBXAjR4idTGEzIBHX27iA==

<SEC-DOCUMENT>0001140361-04-000335.txt : 20040113
<SEC-HEADER>0001140361-04-000335.hdr.sgml : 20040113
<ACCEPTANCE-DATETIME>20040113153759
ACCESSION NUMBER:		0001140361-04-000335
CONFORMED SUBMISSION TYPE:	5
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20031230
FILED AS OF DATE:		20040113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FREEDMAN SIGMUND
		CENTRAL INDEX KEY:			0001058174

	FILING VALUES:
		FORM TYPE:		5
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-06994
		FILM NUMBER:		04522740

	BUSINESS ADDRESS:	
		STREET 1:		0
		STREET 2:		1050 GEORGES RD
		CITY:			NEW BRUNSWICK
		STATE:			NJ
		ZIP:			08904
		BUSINESS PHONE:		7322871200

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NEW BRUNSWICK SCIENTIFIC CO INC
		CENTRAL INDEX KEY:			0000071241
		STANDARD INDUSTRIAL CLASSIFICATION:	LABORATORY APPARATUS & FURNITURE [3821]
		IRS NUMBER:				221630072
		STATE OF INCORPORATION:			NJ
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		44 TALMADGE RD
		STREET 2:		PO BOX 4005
		CITY:			EDISON
		STATE:			NJ
		ZIP:			08818-4005
		BUSINESS PHONE:		9082871200

	MAIL ADDRESS:	
		STREET 1:		44 TALMADGE ROAD
		STREET 2:		PO BOX 4005
		CITY:			EDISON
		STATE:			NJ
		ZIP:			08818-4005
</SEC-HEADER>
<DOCUMENT>
<TYPE>5
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 5
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>5</documentType>
<periodOfReport>2003-12-30</periodOfReport>
<notSubjectToSection16>0</notSubjectToSection16>
    <form3HoldingsReported>0</form3HoldingsReported>

    <form4TransactionsReported>0</form4TransactionsReported>

    <issuer>
        <issuerCik>0000071241</issuerCik>
        <issuerName>NEW BRUNSWICK SCIENTIFIC CO INC</issuerName>
        <issuerTradingSymbol>nbsc</issuerTradingSymbol>
</issuer>
<reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001058174</rptOwnerCik>
            <rptOwnerName>FREEDMAN SIGMUND</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>COLONY HOUSE #10M</rptOwnerStreet1>
            <rptOwnerStreet2>1050 GEORGE ST</rptOwnerStreet2>
            <rptOwnerCity>NEW BRUNSWICK</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08901</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>0</isDirector>
<isOfficer>0</isOfficer>
<isTenPercentOwner>1</isTenPercentOwner>
<isOther>0</isOther>
<officerTitle></officerTitle>
<otherText></otherText>
</reportingOwnerRelationship>
</reportingOwner>
<nonDerivativeTable>
<nonDerivativeTransaction>
<securityTitle>
<value>COMMON STOCK</value>
</securityTitle>
<transactionDate>
<value>2003-01-02</value>
</transactionDate>
<deemedExecutionDate>
</deemedExecutionDate>
<transactionCoding>
<transactionFormType>5</transactionFormType>
<transactionCode>G</transactionCode>
<equitySwapInvolved>0</equitySwapInvolved>
</transactionCoding>
<transactionTimeliness>
<value></value>
</transactionTimeliness>
<transactionAmounts>
<transactionShares>
<value>35207</value>
</transactionShares>
<transactionPricePerShare>
<value>0</value>
</transactionPricePerShare>
<transactionAcquiredDisposedCode>
<value>D</value>
</transactionAcquiredDisposedCode>
</transactionAmounts>
<postTransactionAmounts>
<sharesOwnedFollowingTransaction>
<value>1023201</value>
<footnoteId id="F1"/>
</sharesOwnedFollowingTransaction>
</postTransactionAmounts>
<ownershipNature>
<directOrIndirectOwnership>
<value>D</value>
</directOrIndirectOwnership>
<natureOfOwnership>
<value></value>
</natureOfOwnership>
</ownershipNature>
</nonDerivativeTransaction>
</nonDerivativeTable>
<footnotes>
<footnote id="F1">INCLUDES 93,017 SHARES RECEIVED UPON PAYMENT OF 10% STOCK DIVIDEND ON MAY 15, 2003</footnote>
</footnotes>
<remarks></remarks>
<ownerSignature>
<signatureName>SIGMUND FREEDMAN</signatureName>
<signatureDate>2004-01-13</signatureDate>
</ownerSignature>
</ownershipDocument>

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