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 6645-01-550-9669
NSN 6610-01-658-5410
NSN 5925-00-708-8769
NSN 5855-00-252-5743
NSN 6220-00-018-0047
NSN 5975-01-598-4257
NSN 6135-00-900-2139
NSN 6145-01-393-8103
NSN 6610-01-468-0679
NSN 5945-01-271-1067
NSN 5965-01-315-1916
NSN 5905-00-485-5482