Called washer
No other part numbers with same form, fit, and function found.
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 5915-01-375-9855
NSN 5910-01-167-2411
NSN 5975-01-092-3050
NSN 6320-01-366-5157
NSN 5990-01-378-7349
NSN 6135-00-437-5182
NSN 5895-01-160-3869
NSN 5835-01-449-7511
NSN 5999-01-417-2834
NSN 5895-01-323-7562
NSN 6610-01-365-7796
NSN 2925-00-574-3883