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 6650-01-633-9147
NSN 5960-01-342-9965
NSN 6685-01-443-3284
NSN 5996-00-958-1298
NSN 6620-01-285-0302
NSN 6145-01-476-4056
NSN 6610-00-114-1802
NSN 6685-01-648-4159
NSN 4140-01-066-4681
NSN 5999-01-634-0576
NSN 5990-01-400-3299
NSN 5835-00-690-8898