<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0204</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2011-11-14</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001216596</issuerCik>
        <issuerName>NORTEK INC</issuerName>
        <issuerTradingSymbol>NTK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001259042</rptOwnerCik>
            <rptOwnerName>ARES PARTNERS MANAGEMENT CO LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001259313</rptOwnerCik>
            <rptOwnerName>ARES MANAGEMENT LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001462608</rptOwnerCik>
            <rptOwnerName>ACOF Operating Manager III LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001503494</rptOwnerCik>
            <rptOwnerName>ACOF Management III, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001428903</rptOwnerCik>
            <rptOwnerName>ARES CORPORATE OPPORTUNITIES FUND III LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001371907</rptOwnerCik>
            <rptOwnerName>ACOF Operating Manager II, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001372044</rptOwnerCik>
            <rptOwnerName>ACOF Management II, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001371903</rptOwnerCik>
            <rptOwnerName>Ares Corporate Opportunities Fund II, L.P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2000 AVENUE OF THE STARS, 12TH FLOOR</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90067</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5291258</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnotes</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Restricted common stock, par value $0.01 per share</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>3904</value>
                    <footnoteId id="F3"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrant to Purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>52.80</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F5"/>
            </exerciseDate>
            <expirationDate>
                <value>2014-12-17</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>55562</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F6"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Option to Purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>17.50</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F7"/>
            </exerciseDate>
            <expirationDate>
                <value>2020-04-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                    <footnoteId id="F7"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Option to Purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>41.00</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <footnoteId id="F8"/>
            </exerciseDate>
            <expirationDate>
                <value>2020-08-12</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock, par value $0.01 per share</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>10000</value>
                    <footnoteId id="F8"/>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F4"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The amount reported reflects 2,492,305 shares owned of record by Ares Corporate Opportunities Fund II, L.P. (&quot;ACOF II&quot;) and 2,798,952 shares owned of record by Ares Corporate Opportunities Fund III, L.P. (&quot;ACOF III&quot;). The general partner of ACOF II is ACOF Management II, L.P. (&quot;ACOF Management II&quot;) and the general partner of ACOF Management II is ACOF Operating Manager II, L.P. (&quot;ACOF Operating II&quot;). The general partner of ACOF III is ACOF Management III, L.P. (&quot;ACOF Management III&quot;) and the general partner of ACOF Management III is ACOF Operating Manager III, LLC (&quot;ACOF Operating III&quot;). ACOF Operating II and ACOF Operating III are directly or indirectly owned by Ares Management LLC (&quot;Ares Management&quot;) which, in turn, is indirectly controlled by Ares Partners Management Company LLC (&quot;APMC,&quot; and collectively with ACOF II, ACOF III, ACOF Management II, ACOF Management III, ACOF Operating II, ACOF Operating III and Ares Management, the &quot;Ares Entities&quot;). (Continued in footnote 2)</footnote>
        <footnote id="F2">APMC is managed by an executive committee comprised of Messrs. Michael Arougheti, David Kaplan, Gregory Margolies, Antony Ressler and Bennett Rosenthal. Each of the members of the executive committee, the Ares Entities (other than ACOF II and ACOF III, with respect to the shares owned by ACOF II and ACOF III, respectively) and the partners, members and managers of the Ares Entities disclaims beneficial ownership of these securities, except to the extent of any pecuniary interest therein, and this Form 3 shall not be deemed an admission that any such person or entity is the beneficial owner of, or has any pecuniary interest in, such securities for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, or for any other purposes. The address of each Ares Entity is 2000 Avenue of the Stars, 12th Floor, Los Angeles, CA 90067.</footnote>
        <footnote id="F3">Restricted stock grant vests in one-third installments.  One-third vests on each anniversary date of the grant beginning on August 8, 2012.</footnote>
        <footnote id="F4">Bennett Rosenthal holds 1,952 shares of the total restricted common stock reported and the option expiring April 8, 2020, and Daniel C. Lukas holds 1,952 shares of the total restricted common stock reported and the option expiring August 12, 2020.  These securities were granted to Messrs. Rosenthal and Lukas in their respective capacities as directors of the Issuer. Messrs. Rosenthal and Lukas are associated with Ares Management and certain of the other Ares Entities. Pursuant to the policies of the Ares Entities, each of Messrs. Rosenthal and Lukas hold these securities as a nominee on behalf of, and for the sole benefit of, the Ares Entities and has assigned to Ares Management all economic, pecuniary and voting rights in respect of such securities.</footnote>
        <footnote id="F5">These warrants can be exercised at any time.</footnote>
        <footnote id="F6">The warrants are owned directly by ACOF II. See footnotes 1 and 2.</footnote>
        <footnote id="F7">The option is exercisable in five equal annual installments.  20% becomes exercisable on each anniversary of the grant date beginning on April 8, 2011.</footnote>
        <footnote id="F8">This option is exercisable in five equal annual installments.  20% becomes exercisable on each anniversary of the grant date beginning on August 12, 2011.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory of ACOF OPERATING MANAGER II, L.P., Manager, for ARES CORPORATE OPPORTUNITIES FUND II, L.P.</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory of ACOF OPERATING MANAGER II, L.P., General Partner, for ACOF MANAGEMENT II, L.P.</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory, for ACOF OPERATING MANAGER II, L.P.</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory of ACOF OPERATING MANAGER III, LLC, Manager, for ARES CORPORATE OPPORTUNITIES FUND III, L.P.</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory of ACOF OPERATING MANAGER III, LLC, General Partner, for ACOF MANAGEMENT III, L.P.</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory, for ACOF OPERATING MANAGER III, LLC</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory, for ARES MANAGEMENT LLC</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>Michael D. Weiner, Authorized Signatory, for ARES PARTNERS MANAGEMENT COMPANY LLC</signatureName>
        <signatureDate>2011-11-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
