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 6645-01-245-8390
NSN 5990-01-066-0461
NSN 6135-00-840-6451
NSN 6110-00-804-4830
NSN 5915-01-205-2933
NSN 6145-01-301-2003
NSN 6320-00-841-2279
NSN 6320-01-552-8721
NSN 5960-01-462-1864
NSN 6135-00-255-1340
NSN 5905-01-421-2691
NSN 6110-00-738-3400