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 5999-00-990-1731
NSN 5965-01-449-2794
NSN 6240-01-414-9529
NSN 6110-01-048-2414
NSN 5990-01-529-7307
NSN 5945-00-936-6048
NSN 5945-01-608-4428
NSN 4140-01-230-8468
NSN 6135-01-584-0941
NSN 5999-01-041-8037
NSN 5998-01-171-3777
NSN 5895-00-367-9619