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 5945-01-141-5570
NSN 5999-01-324-4386
NSN 5930-01-258-3879
NSN 4140-01-270-9624
NSN 6110-01-517-5871
NSN 6150-00-189-0292
NSN 5925-01-139-3151
NSN 5975-00-535-2804
NSN 5996-01-161-6296
NSN 6220-01-345-4292
NSN 5835-01-310-8979
NSN 5945-00-615-6778