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 6240-01-123-8822
NSN 5950-01-317-4386
NSN 5905-00-942-4974
NSN 5998-01-510-9403
NSN 6610-01-446-7635
NSN 6610-01-474-8520
NSN 5905-01-393-5962
NSN 5950-01-359-8952
NSN 6145-00-485-6812
NSN 6685-01-451-3937
NSN 5910-01-610-9411
NSN 5945-00-912-0165