F118 engine qualified
A nut having one convex, spherical bearing surface, with 12 drive points, 24 sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 7035-01-227-2546
NSN 4140-00-605-0396
NSN 6240-00-193-1806
NSN 5945-01-572-2999
NSN 6645-01-267-1868
NSN 6145-00-890-5438
NSN 5855-00-149-0766
NSN 5905-01-317-0657
NSN 6650-00-183-9648
NSN 6620-01-535-4358
NSN 5935-01-088-0894
NSN 6650-01-517-9452