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 5990-00-633-7634
NSN 5920-00-149-0013
NSN 5950-01-564-5627
NSN 6150-00-175-9695
NSN 6110-00-281-3676
NSN 6145-01-025-3911
NSN 5965-01-015-5885
NSN 2925-01-423-8141
NSN 6650-00-431-4375
NSN 6650-00-161-2444
NSN 6130-01-528-7636
NSN 6610-01-534-7683