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 5990-00-840-6571
NSN 5925-01-502-9177
NSN 6220-01-042-9773
NSN 6650-00-287-5868
NSN 5895-01-291-4469
NSN 6320-00-857-4073
NSN 2925-00-233-5644
NSN 5915-00-460-5713
NSN 4140-01-139-4877
NSN 5905-01-333-0701
NSN 5915-01-309-1598
NSN 5975-00-009-2725