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 5910-01-553-4407
NSN 6650-00-172-7519
NSN 6610-00-350-1091
NSN 5930-01-174-3467
NSN 5960-01-469-5874
NSN 5920-01-407-0406
NSN 5975-01-513-0032
NSN 5999-01-458-9072
NSN 6150-00-505-3969
NSN 5950-01-446-6903
NSN 5990-00-066-2217
NSN 6320-01-103-6218