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 6620-01-415-8550
NSN 5835-00-187-1481
NSN 6610-01-258-6655
NSN 5990-00-842-6949
NSN 5925-01-029-3315
NSN 6110-01-033-5184
NSN 6220-00-553-8938
NSN 6135-01-633-8502
NSN 5915-00-359-7776
NSN 5930-00-584-4563
NSN 6130-01-527-5372
NSN 6320-00-223-0498