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 5930-01-657-0140
NSN 4140-01-394-5655
NSN 5835-00-233-6327
NSN 5945-01-187-9245
NSN 6105-01-653-6829
NSN 5950-01-161-2044
NSN 6110-00-822-4411
NSN 5910-00-017-0477
NSN 6645-00-892-1605
NSN 2925-01-065-0060
NSN 6135-01-641-8640
NSN 5835-01-436-1797