No. 4 split lock ring
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 5930-00-252-7683
NSN 7035-01-034-3653
NSN 7035-01-110-2567
NSN 5960-01-599-9821
NSN 6685-01-197-5800
NSN 6130-01-239-1445
NSN 6135-00-134-6648
NSN 5935-01-088-6898
NSN 5915-01-010-1562
NSN 5960-01-613-6122
NSN 5985-00-908-2023
NSN 5925-01-199-9341