No other part numbers with same form, fit, and function found.
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
NSN 6240-01-399-1646
NSN 6620-00-773-2931
NSN 6685-01-122-8331
NSN 6610-00-767-4602
NSN 5998-00-051-0644
NSN 6320-01-072-2073
NSN 6130-01-587-8480
NSN 5835-01-495-5986
NSN 6620-00-449-1973
NSN 6240-01-542-3823
NSN 5965-00-372-2537
NSN 5965-01-262-1722