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 5925-01-510-8584
NSN 6135-01-010-0891
NSN 6130-01-025-5995
NSN 5960-01-224-8022
NSN 5985-00-189-0953
NSN 6130-01-487-4061
NSN 5910-00-501-9387
NSN 5935-01-502-5852
NSN 6620-01-127-6306
NSN 7035-00-088-7355
NSN 6645-01-449-0785
NSN 5930-01-519-9318