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 6130-01-574-4639
NSN 5975-01-272-8488
NSN 5960-00-931-8172
NSN 7035-01-642-6950
NSN 5935-01-032-4451
NSN 6240-00-947-4719
NSN 5975-00-034-7786
NSN 5985-00-492-7581
NSN 5920-01-069-3433
NSN 6150-01-292-5769
NSN 6240-00-519-3399
NSN 6110-01-027-8720