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 6240-01-180-9207
NSN 6150-00-100-1302
NSN 5930-01-424-1436
NSN 5910-00-439-1565
NSN 7035-00-616-4410
NSN 6685-01-355-3868
NSN 5950-00-705-5421
NSN 6110-01-149-4214
NSN 6320-01-119-3935
NSN 5915-01-536-5189
NSN 5920-01-127-7341
NSN 5920-01-281-7354