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 6220-00-589-1148
NSN 6620-01-601-7491
NSN 5999-00-711-0975
NSN 6610-01-204-7281
NSN 5950-01-241-7825
NSN 6105-01-462-0766
NSN 6320-00-284-1524
NSN 6320-00-242-3300
NSN 5930-01-452-2473
NSN 6610-01-445-6687
NSN 5975-01-024-3609
NSN 6685-00-186-0190