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 5835-01-228-8666
NSN 6685-00-144-6362
NSN 6645-01-152-1092
NSN 6645-01-400-1383
NSN 6240-01-241-5209
NSN 6130-01-165-0440
NSN 5996-01-481-7129
NSN 5950-00-230-4275
NSN 5920-01-131-7567
NSN 5905-01-577-9854
NSN 5965-01-310-8943
NSN 5920-01-160-9260