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 5910-01-089-2549
NSN 5950-01-634-0677
NSN 6240-01-344-7134
NSN 6645-01-415-5982
NSN 5930-00-934-1713
NSN 6150-01-232-5197
NSN 5930-01-259-6423
NSN 6130-00-139-2914
NSN 5996-01-582-4136
NSN 6105-01-401-5361
NSN 5925-01-089-9791
NSN 5855-00-179-8588