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 5965-00-170-5254
NSN 6220-00-318-7755
NSN 6685-00-399-3250
NSN 5990-01-045-7754
NSN 5990-00-917-4220
NSN 4140-01-138-0099
NSN 5920-00-471-9049
NSN 5905-01-391-2550
NSN 6610-01-256-7938
NSN 6130-01-483-7558
NSN 5999-01-054-2954
NSN 6685-01-129-9569