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 5905-01-390-4038
NSN 5920-01-235-6477
NSN 5950-01-391-2558
NSN 5950-01-331-2840
NSN 6220-01-655-4848
NSN 6610-00-285-5366
NSN 5895-01-487-8939
NSN 5950-00-173-5846
NSN 6150-00-900-4984
NSN 5950-00-625-2671
NSN 5985-00-567-4584
NSN 5996-01-040-2606