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 4140-01-034-9806
NSN 5855-01-398-9548
NSN 5945-00-040-0039
NSN 5930-00-834-7242
NSN 5990-00-805-7165
NSN 5960-01-223-6202
NSN 6150-01-385-2934
NSN 5930-01-333-9397
NSN 5990-01-024-9659
NSN 6645-00-720-3953
NSN 5999-00-630-5598
NSN 6220-01-062-2077