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 5950-01-093-9071
NSN 6320-01-144-3810
NSN 5975-01-630-9994
NSN 6145-01-147-8777
NSN 5996-00-876-6631
NSN 5905-00-334-8958
NSN 5985-00-079-0598
NSN 4140-01-326-8535
NSN 6150-01-103-9732
NSN 5935-00-843-3168
NSN 5999-00-484-8087
NSN 5999-00-138-2982