Hardness rating: not rated
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
NSN 6130-00-151-5001
NSN 2925-01-178-0063
NSN 6620-00-010-8190
NSN 5996-01-562-6568
NSN 7035-01-455-7277
NSN 6110-00-129-8714
NSN 5965-00-852-6258
NSN 5960-00-573-8985
NSN 5895-00-482-7335
NSN 5975-00-806-2113
NSN 5905-01-578-8399
NSN 6685-00-484-2167