-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
 MFgwCgYEVQgBAQICAf8DSgAwRwJAW2sNKK9AVtBzYZmr6aGjlWyK3XmZv3dTINen
 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 O7Q6xmdFMj3dWI8WfYeLk7viW+i8vvTKMyeIxvUnpT52iGi8hUu6qIKh3zF/AFX0
 OABfHX0tU5c9cx4wzFnPbQ==

<SEC-DOCUMENT>0001005978-10-000001.txt : 20100414
<SEC-HEADER>0001005978-10-000001.hdr.sgml : 20100414
<ACCEPTANCE-DATETIME>20100414172701
ACCESSION NUMBER:		0001005978-10-000001
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20100413
FILED AS OF DATE:		20100414
DATE AS OF CHANGE:		20100414

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			SUNSHINE DENNIS
		CENTRAL INDEX KEY:			0001005978

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-03936
		FILM NUMBER:		10750158

	MAIL ADDRESS:	
		STREET 1:		C/O ORBIT INTERNATIONAL CORP
		STREET 2:		80 CABOT CT
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11788

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ORBIT INTERNATIONAL CORP
		CENTRAL INDEX KEY:			0000074818
		STANDARD INDUSTRIAL CLASSIFICATION:	ELECTRONIC COMPONENTS, NEC [3679]
		IRS NUMBER:				111826363
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		80 CABOT COURT
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11788
		BUSINESS PHONE:		7136675601

	MAIL ADDRESS:	
		STREET 1:		80 CABOT COURT
		CITY:			HAUPPAUGE
		STATE:			NY
		ZIP:			11788

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	ORBIT INSTRUMENT CORP
		DATE OF NAME CHANGE:	19911015
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2010-04-13</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000074818</issuerCik>
        <issuerName>ORBIT INTERNATIONAL CORP</issuerName>
        <issuerTradingSymbol>orbt</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001005978</rptOwnerCik>
            <rptOwnerName>SUNSHINE DENNIS</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O ORBIT INTERNATIONAL CORP</rptOwnerStreet1>
            <rptOwnerStreet2>80 CABOT CT</rptOwnerStreet2>
            <rptOwnerCity>HAUPPAUGE</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>11788</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President and CEO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock, $.10 par value</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <transactionDate>
                <value>2010-04-13</value>
                <footnoteId id="F1"/>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>33967</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>504578</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">On April 13, 2010, the Issuer, as part of a long term incentive plan, issued to the Reporting Person 33,967 shares of restricted stock valued at $3.68 per share. These shares are subject to forfeiture and acceleration in vesting for death or change in control. The shares shall vest, provided the Reporting Person is still employed, as follows: (i) 11,323 shares on Janaury 3, 2011, (ii) 11,322 shares on Janaury 3, 2012 and (iii) 11,322 shares on Janaury 2, 2013.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Dennis Sunshine</signatureName>
        <signatureDate>2010-04-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----