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 4140-01-499-2153
NSN 5910-00-081-3878
NSN 5925-01-335-8933
NSN 5999-01-491-9221
NSN 5996-01-562-0855
NSN 6150-01-438-2978
NSN 5990-01-485-0260
NSN 6240-01-643-4535
NSN 6145-00-342-8122
NSN 6685-00-420-2781
NSN 6620-01-050-2866
NSN 5935-00-904-7479