Head markings indented at 120.0 degrees
A nut having a flat bottom and 6 sides. An integral feature is incorporated for locking on the threads of a mating member. Excludes nut (1), self-locking, cap.
Classification: Nuts of iron or steel
NSN 5920-01-579-4050
NSN 5895-00-637-2658
NSN 6105-00-923-0847
NSN 6135-01-120-9812
NSN 6240-00-519-3399
NSN 6135-01-213-7339
NSN 5935-01-610-6409
NSN 5905-01-216-5196
NSN 5950-00-005-7028
NSN 6645-01-431-0732
NSN 6135-00-369-2368
NSN 5965-01-605-4703