A nut having a flat bearing surface and 6 flat sides with slots in its upper portion. It is designed to provide positive locking when used with a solid or split (cotter) pin. Excludes nut (1), plain, castellated, hexagon.
Classification: Nuts of iron or steel
NSN 6240-01-503-4550
NSN 5999-01-609-8691
NSN 5935-01-352-5470
NSN 5855-01-366-2429
NSN 6220-01-340-3699
NSN 6135-00-128-1633
NSN 5990-01-331-9438
NSN 6620-01-411-7382
NSN 5855-01-141-8227
NSN 6240-00-603-6662
NSN 6110-01-512-2758
NSN 6650-00-948-3647