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 4140-01-168-0661
NSN 5855-01-154-3871
NSN 5990-01-065-0492
NSN 5895-01-616-2291
NSN 5950-01-197-4765
NSN 6220-01-620-7559
NSN 5945-00-828-2336
NSN 5935-01-291-2881
NSN 5999-00-932-3690
NSN 5915-01-328-2434
NSN 6150-00-854-8524
NSN 4140-01-502-1370