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 6110-01-649-6493
NSN 6220-00-337-7504
NSN 6320-01-592-6248
NSN 5945-01-194-3676
NSN 5965-01-646-7498
NSN 6320-01-098-2503
NSN 5855-00-138-2386
NSN 5998-00-327-3497
NSN 4140-01-183-0618
NSN 6685-01-204-7125
NSN 5905-01-382-9671
NSN 5920-01-546-0705