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 5910-00-853-1576
NSN 6105-00-964-4060
NSN 4140-01-406-2054
NSN 6135-01-120-9812
NSN 6130-00-386-1962
NSN 5915-01-257-4714
NSN 6610-00-170-6715
NSN 5999-01-056-5281
NSN 6645-01-633-1852
NSN 4140-00-672-9531
NSN 6145-00-849-1353
NSN 7035-01-475-7837