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 6620-00-317-7820
NSN 5985-01-007-1964
NSN 5905-00-728-9590
NSN 5895-00-594-8819
NSN 5930-00-957-9363
NSN 5930-01-431-9331
NSN 5990-01-426-7350
NSN 5985-01-151-9901
NSN 5990-00-560-7923
NSN 6145-01-522-6870
NSN 2925-01-648-6859
NSN 5910-01-416-6484