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 5960-01-224-7151
NSN 6135-01-185-3614
NSN 6150-01-509-6003
NSN 6320-00-422-1773
NSN 6145-01-456-0903
NSN 5998-01-146-4367
NSN 5975-00-257-5616
NSN 5915-00-119-2211
NSN 2925-01-541-5031
NSN 5975-01-217-6213
NSN 6135-01-351-1131
NSN 5910-01-172-7493