F118 engine qualified
A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Classification: Nuts of iron or steel
NSN 5930-01-238-8227
NSN 6105-01-642-5246
NSN 5895-00-837-3441
NSN 6650-01-236-0366
NSN 6150-01-400-4211
NSN 7035-01-387-0493
NSN 4140-00-423-6663
NSN 6110-01-116-2353
NSN 5920-01-029-1635
NSN 5945-01-487-4127
NSN 6130-01-467-2039
NSN 6645-00-658-7838