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 5975-00-093-8196
NSN 5855-01-188-4049
NSN 6320-00-322-3460
NSN 5945-00-847-6148
NSN 5930-01-430-2510
NSN 5920-01-533-6720
NSN 5950-00-316-6121
NSN 5965-01-370-1891
NSN 6650-01-335-9825
NSN 5920-00-059-4659
NSN 5915-01-183-6752
NSN 5935-00-369-0955