Safety critical thread per federal standard h28/20 system 22
No other part numbers with same form, fit, and function found.
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 6610-01-328-3400
NSN 5910-00-248-6899
NSN 4140-01-020-1116
NSN 5990-00-761-3335
NSN 5935-00-655-4427
NSN 6645-01-062-6705
NSN 2925-00-325-4372
NSN 6220-01-307-9029
NSN 5945-00-949-6474
NSN 5975-01-328-8244
NSN 5930-01-378-1632
NSN 4140-00-765-7748