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 5920-01-270-2171
NSN 6620-01-207-7333
NSN 5990-01-609-4793
NSN 6645-01-242-0340
NSN 5895-00-258-9135
NSN 6685-00-080-5139
NSN 5998-01-398-0072
NSN 5905-00-429-0019
NSN 4140-00-603-5074
NSN 6620-01-341-5164
NSN 5945-00-535-9574
NSN 5998-00-754-5186