Lock washer
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 6220-01-584-0934
NSN 5945-01-274-9482
NSN 6105-00-899-3812
NSN 6320-01-600-0787
NSN 5920-01-283-7042
NSN 5960-00-161-3728
NSN 5915-00-695-1931
NSN 6220-00-806-2616
NSN 5996-01-369-9209
NSN 5960-00-431-3260
NSN 6220-01-661-1723
NSN 5998-01-347-4046