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 2925-00-455-2367
NSN 5920-00-233-8690
NSN 6130-00-153-3136
NSN 6620-01-271-4630
NSN 5920-01-470-2318
NSN 6685-00-456-2385
NSN 5998-01-027-0855
NSN 6110-01-338-2724
NSN 6145-01-048-6196
NSN 6135-01-068-0119
NSN 6650-01-083-6671
NSN 5960-01-589-6846