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 5925-00-963-6962
NSN 6645-00-315-9254
NSN 6620-01-475-4717
NSN 5999-01-535-0259
NSN 6145-01-579-3510
NSN 6610-01-443-0264
NSN 6150-01-184-3581
NSN 5915-00-878-9868
NSN 6240-00-130-4995
NSN 5975-01-131-2239
NSN 4140-01-529-6693
NSN 6130-00-323-0629