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 5835-01-527-2629
NSN 5925-01-274-2263
NSN 5920-01-138-4984
NSN 6620-01-268-8929
NSN 6220-00-941-4007
NSN 6130-01-388-2092
NSN 6650-01-650-1762
NSN 7035-01-158-7673
NSN 6320-00-994-0179
NSN 5996-00-188-7063
NSN 5915-01-132-5002
NSN 5905-00-517-9412