For number 10 screw size
A bent spring metal washer with a centrally located hole. It is designed to exert pressure axially when assembled in place.
Classification: Spring washers and other lock washers, iron or steel
NSN 5835-01-030-8914
NSN 6145-01-597-9511
NSN 5895-01-142-1785
NSN 5945-01-598-2479
NSN 6105-01-098-5538
NSN 5925-01-387-8143
NSN 5965-01-310-9576
NSN 7035-01-143-0355
NSN 6650-01-297-4376
NSN 6650-01-119-0718
NSN 6145-01-102-5698
NSN 4140-01-545-6020