A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 6645-00-287-9192
NSN 6105-01-599-9665
NSN 5965-00-070-8520
NSN 4140-01-274-1942
NSN 6610-01-211-0835
NSN 5996-01-616-9538
NSN 5960-01-254-0314
NSN 6320-00-369-7776
NSN 6145-00-508-8353
NSN 5950-01-241-5477
NSN 5925-00-964-9654
NSN 5925-01-445-6016