A washer which is usually round with a centrally located hole. Its edges and two bearing surfaces are so designed that applied pressure brings into play the spring tension and/or frictional locking principle which materially resists any tendency toward turning. It may be made of one or two pieces
NSN 6620-00-905-6590
NSN 6610-00-191-5317
NSN 6145-01-248-1466
NSN 6620-00-684-6771
NSN 5999-01-443-0374
NSN 5960-01-311-5817
NSN 4140-01-580-8573
NSN 6105-00-406-1148
NSN 5925-01-207-1403
NSN 5996-01-462-3656
NSN 6150-01-444-2430
NSN 5930-00-205-9157