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 5910-01-351-5679
NSN 5925-01-631-1119
NSN 6150-00-339-1336
NSN 6645-00-300-0401
NSN 6240-01-540-2749
NSN 6650-00-393-0447
NSN 6620-01-302-1537
NSN 6220-00-692-9873
NSN 5930-01-302-7039
NSN 6685-01-386-3110
NSN 5945-00-811-9609
NSN 5996-01-066-0335