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 5925-00-525-4037
NSN 2925-01-139-6340
NSN 5930-01-399-2555
NSN 6650-01-302-9695
NSN 6130-01-044-7373
NSN 4140-01-317-4698
NSN 5930-00-661-2280
NSN 5945-01-208-6355
NSN 6220-01-443-9315
NSN 6645-01-076-4655
NSN 5915-00-636-0629
NSN 6145-01-347-7005