FAA-PMA
A PMA part is approved for the specific eligibility listed on its FAA record; whether it may go on a particular aircraft, engine or component is the installer's determination from that record and the eligibility list. A part-number match alone does not establish eligibility. Source: FAA DRS PMA database, refreshed weekly. Data, not advice.
21146 is cataloged as BEARING,BALL,ANNULAR. It carries 8 NSN identities and cross-references to 13 related part numbers. The part appears on MCRL cross-reference data.
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21146 4OZ, 21146-001, 22314-8, 4994913, 556-1803, 81581, 9418814, A2308-3, D81581, FIX WOOD PATCH, INSTANT WOOD FILLER, TT-F-340, WOOD DOUGH
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