1/4 inch
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 6130-00-757-3060
NSN 5855-01-211-2437
NSN 5975-01-379-4284
NSN 6650-01-338-9998
NSN 6150-00-032-5815
NSN 5935-01-124-2282
NSN 5915-01-633-5058
NSN 5910-01-225-7744
NSN 5945-01-337-7340
NSN 6220-01-072-7575
NSN 5996-00-363-9666
NSN 5920-01-349-0012