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 5920-00-317-2219
NSN 5990-01-331-2221
NSN 5930-01-122-0820
NSN 7035-00-997-6212
NSN 6145-01-118-3195
NSN 6105-00-006-7912
NSN 5950-01-441-3110
NSN 6145-00-793-7816
NSN 5835-01-482-1591
NSN 6685-01-421-6656
NSN 6320-00-228-5678
NSN 5915-01-342-3931