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 4140-01-012-8614
NSN 5990-01-296-8190
NSN 6110-01-462-1698
NSN 5945-01-524-8662
NSN 5895-01-342-9797
NSN 5855-01-483-2774
NSN 6650-01-503-2638
NSN 2925-01-159-8312
NSN 6145-00-103-0720
NSN 6685-01-430-2447
NSN 6105-01-168-4858
NSN 6620-01-148-5191