Hardness rating: not rated
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
NSN 5835-00-904-6272
NSN 5950-00-908-4251
NSN 5990-01-351-4621
NSN 6105-01-056-5258
NSN 5960-00-539-7914
NSN 5985-01-067-8041
NSN 5930-01-120-5427
NSN 6150-00-278-1060
NSN 5975-01-591-2103
NSN 5950-00-823-4784
NSN 6610-01-088-5871
NSN 5998-01-483-7783