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 6620-01-184-9210
NSN 6130-01-481-3599
NSN 6610-01-390-6925
NSN 5895-00-084-1993
NSN 5910-01-059-1113
NSN 6685-01-471-3554
NSN 5855-00-832-9341
NSN 5990-01-020-6841
NSN 6220-01-167-7859
NSN 6145-00-512-6675
NSN 5945-01-112-0841
NSN 6145-01-130-1252