Length is critical
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 5960-00-539-2748
NSN 5925-01-446-0352
NSN 5855-00-149-0766
NSN 6150-00-439-1526
NSN 6240-00-982-4522
NSN 5950-00-228-5925
NSN 6220-01-249-0015
NSN 6650-00-543-6023
NSN 7035-01-211-5636
NSN 6145-01-574-2867
NSN 5935-01-042-6332
NSN 4140-01-206-2397