5310-00-615-8580 (6158580)
NSN 5310-00-615-8580 (NIIN 00-615-8580) is a spring tension washer in Federal Supply Class 5310, Nuts And Washers — a bent spring metal washer with a centrally located hole. Manufacturer part number 6158580 (Army, United States Department Of, CAGE 19204).
NIIN assigned January 1963; DEMIL A (none required).