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 4140-01-076-8051
NSN 5996-00-905-6610
NSN 6620-01-557-1941
NSN 5950-01-601-5124
NSN 6130-01-422-2352
NSN 6145-00-181-9622
NSN 6240-00-617-9599
NSN 5985-01-368-0267
NSN 4140-00-889-7990
NSN 5855-01-444-9182
NSN 5950-01-098-8634
NSN 6135-01-100-3593