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 5999-01-430-2229
NSN 6645-00-508-5723
NSN 5835-00-443-1079
NSN 6650-00-763-4555
NSN 5965-01-555-1532
NSN 6685-01-634-0611
NSN 5930-01-225-9754
NSN 6130-01-333-1895
NSN 5905-01-043-5677
NSN 4140-00-120-1203
NSN 5965-00-553-6898
NSN 6685-01-157-9340