<SUBMISSION>
<ACCESSION-NUMBER>0001209191-14-015173
<TYPE>4
<PUBLIC-DOCUMENT-COUNT>1
<PERIOD>20140227
<FILING-DATE>20140228
<DATE-OF-FILING-DATE-CHANGE>20140228
<ISSUER>
<COMPANY-DATA>
<CONFORMED-NAME>AMERICAN PACIFIC CORP
<CIK>0000350832
<ASSIGNED-SIC>2810
<IRS-NUMBER>596490478
<STATE-OF-INCORPORATION>DE
<FISCAL-YEAR-END>0930
</COMPANY-DATA>
<BUSINESS-ADDRESS>
<STREET1>3883 HOWARD HUGHES PARKWAY
<STREET2>STE 700
<CITY>LAS VEGAS
<STATE>NV
<ZIP>89169
<PHONE>7027352200
</BUSINESS-ADDRESS>
<MAIL-ADDRESS>
<STREET1>3883 HOWARD HUGHES PARKWAY
<STREET2>STE 700
<CITY>LAS VEGAS
<STATE>NV
<ZIP>89169
</MAIL-ADDRESS>
</ISSUER>
<REPORTING-OWNER>
<OWNER-DATA>
<CONFORMED-NAME>CARLEONE JOSEPH
<CIK>0001212515
</OWNER-DATA>
<FILING-VALUES>
<FORM-TYPE>4
<ACT>34
<FILE-NUMBER>001-08137
<FILM-NUMBER>14653134
</FILING-VALUES>
<MAIL-ADDRESS>
<STREET1>3883 HOWARD HUGHES PKWY
<STREET2>SUITE 700
<CITY>LAS VEGAS
<STATE>NV
<ZIP>89169
</MAIL-ADDRESS>
</REPORTING-OWNER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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            <rptOwnerState>NV</rptOwnerState>
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                <value></value>
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                    <value>D</value>
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                <value>2023-12-10</value>
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    <footnotes>
        <footnote id="F1">Pursuant to the Agreement and Plan of Merger, dated January 9, 2014, among Flamingo Parent Corp., Flamingo Merger Sub Corp. and the Issuer (the &quot;Merger Agreement&quot;), each share of Common Stock was converted into the right to receive a cash amount equal to $46.50.</footnote>
        <footnote id="F2">These shares represent unvested restricted shares of Common Stock, that, in accordance with the terms of the Merger Agreement, were each converted into the right to receive a cash amount equal to $46.50.</footnote>
        <footnote id="F3">The options are fully exercisable, and vested in two equal annual installments beginning on 10/15/2006.</footnote>
        <footnote id="F4">Pursuant to the Merger Agreement, the options were cancelled in exchange for a cash payment of $390,000.00, which is equal to the product of (a) the total number of shares of Common Stock subject to the options and (b) the excess of $46.50 over the exercise price payable in respect of each such share of Common Stock subject to the options.</footnote>
        <footnote id="F5">The options vest in three equal annual installments beginning 12/13/2012.</footnote>
        <footnote id="F6">Pursuant to the Merger Agreement, the options were cancelled in exchange for a cash payment of $194,450.00, which is equal to the product of (a) the total number of shares of Common Stock subject to the options and (b) the excess of $46.50 over the exercise price payable in respect of each such share of Common Stock subject to the options.</footnote>
        <footnote id="F7">The options vest in three equal annual installments beginning on 12/11/2013.</footnote>
        <footnote id="F8">Pursuant to the Merger Agreement, the options were cancelled in exchange for a cash payment of $143,742.06, which is equal to the product of (a) the total number of shares of Common Stock subject to the options and (b) the excess of $46.50 over the exercise price payable in respect of each such share of Common Stock subject to the options.</footnote>
        <footnote id="F9">The options vest in three equal annual installments beginning 12/10/2014.</footnote>
        <footnote id="F10">Pursuant to the Merger Agreement, the options were cancelled in exchange for a cash payment of $11,042.50, which is equal to the product of (a) the total number of shares of Common Stock subject to the options and (b) the excess of $46.50 over the exercise price payable in respect of each such share of Common Stock subject to the options.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Joseph Carleone</signatureName>
        <signatureDate>2014-02-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SUBMISSION>
