No other part numbers with same form, fit, and function found.
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
NSN 6130-00-838-0384
NSN 6240-00-615-8978
NSN 6645-00-754-4108
NSN 6610-01-350-5590
NSN 5930-00-303-2044
NSN 5985-01-576-8819
NSN 6240-01-512-1856
NSN 5915-01-113-1576
NSN 6150-01-634-0575
NSN 5920-01-280-5089
NSN 6610-01-580-9437
NSN 6145-00-635-9957