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 4140-01-174-0284
NSN 6150-00-222-0963
NSN 6650-00-276-9838
NSN 6650-00-879-5834
NSN 6110-00-152-1529
NSN 6650-01-195-3957
NSN 5905-00-203-5913
NSN 4140-00-075-2000
NSN 6135-01-388-2761
NSN 5935-01-173-1220
NSN 6105-01-190-5507
NSN 5895-01-626-6247