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 6650-01-424-0974
NSN 5920-01-449-2172
NSN 5895-01-445-6161
NSN 5990-00-805-7165
NSN 6650-00-826-7396
NSN 5930-01-310-6089
NSN 6110-01-206-3733
NSN 5910-01-449-2271
NSN 2925-01-391-9247
NSN 5910-01-167-6992
NSN 5999-01-033-5013
NSN 6145-01-105-3556