A nut having 1 convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. See also nut (1), plain, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 6320-01-481-7322
NSN 6150-00-679-9203
NSN 5920-00-192-6565
NSN 6135-01-508-5637
NSN 6320-00-809-5744
NSN 6130-00-537-6257
NSN 6110-00-436-1518
NSN 6650-00-620-0212
NSN 6610-01-358-1161
NSN 7035-00-753-0695
NSN 6150-01-217-4177
NSN 6110-01-409-2692