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 5975-01-391-6479
NSN 5930-01-102-2773
NSN 6645-01-067-4393
NSN 5925-01-440-7571
NSN 6650-00-331-2232
NSN 5925-01-494-6619
NSN 5999-00-134-5927
NSN 5920-00-529-0618
NSN 5998-01-607-0282
NSN 6220-00-930-8338
NSN 6650-00-439-8360
NSN 6645-01-023-7557