Serrated face
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
NSN 5910-01-157-9362
NSN 6145-00-336-1986
NSN 4140-01-633-6618
NSN 6240-00-933-7641
NSN 5998-01-477-5013
NSN 5935-01-211-2766
NSN 6685-00-928-7639
NSN 5915-00-195-8761
NSN 4140-01-241-2197
NSN 6650-00-568-7853
NSN 6145-01-282-8258
NSN 6145-01-631-3941