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 5950-01-240-4218
NSN 6620-00-388-9202
NSN 5960-00-729-8150
NSN 5990-01-574-2522
NSN 6105-00-094-8715
NSN 4140-01-525-7296
NSN 5999-01-248-4990
NSN 6610-01-495-8898
NSN 5945-01-652-5596
NSN 5999-01-512-6028
NSN 6645-01-430-4125
NSN 5950-00-155-8340