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 4140-01-353-7761
NSN 5905-01-492-6248
NSN 5915-01-390-0214
NSN 6320-01-125-3361
NSN 6240-00-553-8891
NSN 5975-01-587-5413
NSN 5905-00-601-6338
NSN 6240-01-567-9471
NSN 5915-00-256-6188
NSN 5965-00-803-1502
NSN 5985-01-495-0883
NSN 5895-00-141-9127