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 5905-01-311-5472
NSN 6620-00-403-1142
NSN 5975-00-263-3379
NSN 6145-00-174-3587
NSN 6320-00-036-3688
NSN 4140-01-442-7799
NSN 5855-01-240-4958
NSN 5930-01-487-4206
NSN 5920-01-634-0250
NSN 6650-01-454-2187
NSN 6645-01-179-0243
NSN 5990-00-710-1981