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 6135-00-405-1989
NSN 6610-01-059-5271
NSN 6145-01-012-0185
NSN 5996-01-323-0166
NSN 5915-01-585-1274
NSN 5930-00-373-1000
NSN 5975-01-128-4380
NSN 5855-01-382-8725
NSN 6650-01-592-8910
NSN 5905-00-045-5177
NSN 6130-00-960-9158
NSN 6620-01-462-0001