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 4140-01-206-4981
NSN 6620-01-519-2628
NSN 5950-00-156-1111
NSN 6105-00-901-8780
NSN 5996-00-730-0430
NSN 4140-00-987-2925
NSN 5985-01-460-8743
NSN 6685-01-052-7482
NSN 5925-00-461-1512
NSN 6145-01-588-1757
NSN 5999-00-934-9876
NSN 5996-00-594-8587