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 6620-00-975-5159
NSN 5895-00-149-0645
NSN 5998-01-328-6531
NSN 6110-01-042-9343
NSN 5905-00-498-4739
NSN 6645-01-324-1956
NSN 6145-01-494-7684
NSN 5920-01-056-5481
NSN 6105-01-099-2837
NSN 6135-00-715-4001
NSN 7035-00-007-2739
NSN 5925-01-046-4918