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 6320-01-380-7372
NSN 6110-00-159-8638
NSN 5910-01-288-5644
NSN 6645-01-146-1548
NSN 6610-01-266-3447
NSN 5960-00-866-0232
NSN 5960-01-322-1337
NSN 5905-01-116-6577
NSN 6685-01-163-1324
NSN 5975-01-647-4720
NSN 5910-01-200-6653
NSN 6240-01-162-2411