Number 10, black oxide
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 5998-01-219-1643
NSN 5855-01-423-0817
NSN 6110-01-437-8559
NSN 6610-01-529-5709
NSN 2925-00-149-0760
NSN 5925-01-043-4336
NSN 6240-00-161-8099
NSN 4140-00-529-0844
NSN 6620-00-632-3631
NSN 5910-01-139-6090
NSN 5835-01-135-2601
NSN 5855-00-237-4088