A nut having 6 flat sides, flat on the bottom and having a slotted cylindrical or dome shaped upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, slotted, hexagon.
Classification: Nuts of iron or steel
NSN 6645-00-255-1369
NSN 6135-00-628-1142
NSN 5915-01-462-5552
NSN 5999-01-460-2255
NSN 6650-00-953-0127
NSN 6620-01-311-3516
NSN 4140-01-605-5652
NSN 6150-00-726-9434
NSN 6645-01-383-7362
NSN 5930-01-310-8565
NSN 6105-00-365-4519
NSN 5895-00-124-5257