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 4140-01-058-6602
NSN 6150-00-399-1431
NSN 6620-01-597-0512
NSN 6220-01-111-4629
NSN 6320-01-445-5893
NSN 5920-00-146-5071
NSN 5910-01-028-3541
NSN 5945-01-251-1350
NSN 6145-01-203-3308
NSN 5930-00-850-1926
NSN 6610-01-437-2506
NSN 5998-01-615-6158