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 5990-00-378-1449
NSN 5960-01-436-0349
NSN 6240-01-609-3662
NSN 5905-01-645-2778
NSN 6645-01-133-8359
NSN 6150-00-526-3720
NSN 6145-01-504-0420
NSN 6220-01-429-0946
NSN 6145-01-210-7551
NSN 5985-01-363-5756
NSN 6135-01-255-9129
NSN 5950-01-578-5604