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 5960-01-350-4288
NSN 4140-01-211-0957
NSN 5965-01-395-0051
NSN 5920-01-419-0741
NSN 5915-00-934-0749
NSN 6645-01-399-3487
NSN 5835-00-393-1996
NSN 6620-00-186-8220
NSN 6105-01-020-7266
NSN 6650-00-420-3593
NSN 6130-01-555-7374
NSN 6145-01-158-4833