<SEC-DOCUMENT>0001569740-21-000001.txt : 20210201
<SEC-HEADER>0001569740-21-000001.hdr.sgml : 20210201
<ACCEPTANCE-DATETIME>20210201164510
ACCESSION NUMBER:		0001569740-21-000001
CONFORMED SUBMISSION TYPE:	13F-HR
PUBLIC DOCUMENT COUNT:		2
CONFORMED PERIOD OF REPORT:	20201231
FILED AS OF DATE:		20210201
DATE AS OF CHANGE:		20210201
EFFECTIVENESS DATE:		20210201

FILER:

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Tinicum Inc
		CENTRAL INDEX KEY:			0001569740
		IRS NUMBER:				132932626

	FILING VALUES:
		FORM TYPE:		13F-HR
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	028-15349
		FILM NUMBER:		21577306

	BUSINESS ADDRESS:	
		STREET 1:		800 THIRD AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		212-446-9300

	MAIL ADDRESS:	
		STREET 1:		800 THIRD AVENUE
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
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<SEQUENCE>1
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          <cik>0001569740</cik>
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      <periodOfReport>12-31-2020</periodOfReport>
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    <coverPage>
      <reportCalendarOrQuarter>12-31-2020</reportCalendarOrQuarter>
      <filingManager>
        <name>Tinicum Inc</name>
        <address>
          <com:street1>800 THIRD AVENUE</com:street1>
          <com:city>NEW YORK</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10022</com:zipCode>
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      <provideInfoForInstruction5>N</provideInfoForInstruction5>
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    <signatureBlock>
      <name>Eric M. Ruttenberg</name>
      <title>Managing Member</title>
      <phone>2124463900</phone>
      <signature>Eric Ruttenberg</signature>
      <city>New York</city>
      <stateOrCountry>NY</stateOrCountry>
      <signatureDate>02-01-2021</signatureDate>
    </signatureBlock>
    <summaryPage>
      <otherIncludedManagersCount>0</otherIncludedManagersCount>
      <tableEntryTotal>2</tableEntryTotal>
      <tableValueTotal>214119</tableValueTotal>
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<DOCUMENT>
<TYPE>INFORMATION TABLE
<SEQUENCE>2
<FILENAME>13FQ42020.xml
<DESCRIPTION>13F Q4 2020
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	<ns1:infoTable>
		<ns1:nameOfIssuer>ANTERO MIDSTREAM CORP</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>03676B102</ns1:cusip>
		<ns1:value>69718</ns1:value>
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			<ns1:None>0</ns1:None>
		</ns1:votingAuthority>
	</ns1:infoTable>
	<ns1:infoTable>
		<ns1:nameOfIssuer>KENNAMETAL INC</ns1:nameOfIssuer>
		<ns1:titleOfClass>COM</ns1:titleOfClass>
		<ns1:cusip>489170100</ns1:cusip>
		<ns1:value>144401</ns1:value>
		<ns1:shrsOrPrnAmt>
			<ns1:sshPrnamt>3984571</ns1:sshPrnamt>
			<ns1:sshPrnamtType>SH</ns1:sshPrnamtType>
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