Repair and overhaul manual ap p 7431.143-3, fig 1 index 3
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 5960-00-804-5405
NSN 5975-01-161-4069
NSN 7035-01-069-3537
NSN 5935-01-287-5660
NSN 6105-01-277-4551
NSN 5998-01-360-6038
NSN 6620-01-181-1757
NSN 6620-00-608-1480
NSN 6620-01-515-2790
NSN 6145-00-959-4489
NSN 5910-00-982-2881
NSN 6320-01-246-4390