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 4140-01-391-9550
NSN 5990-01-369-2764
NSN 5998-00-288-5533
NSN 5999-01-387-3024
NSN 5915-01-446-1016
NSN 5996-01-170-1915
NSN 6685-00-647-3883
NSN 6110-01-614-1918
NSN 6320-00-701-0437
NSN 6645-00-825-2448
NSN 6135-01-017-3001
NSN 5905-00-669-3268