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 4140-01-415-7988
NSN 6685-01-524-4757
NSN 5960-01-486-3060
NSN 5920-00-841-2337
NSN 6150-00-891-6218
NSN 5855-01-389-8884
NSN 5960-00-425-6246
NSN 6620-01-652-4349
NSN 5996-00-955-6654
NSN 5935-01-457-4742
NSN 5855-01-066-4399
NSN 6650-00-221-7119