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 5905-01-157-9933
NSN 6105-01-503-3641
NSN 6220-01-615-2225
NSN 5945-00-553-9886
NSN 6320-01-466-4175
NSN 6610-01-605-1161
NSN 5996-01-408-8055
NSN 2925-00-918-0859
NSN 5910-01-394-6109
NSN 6645-00-392-8728
NSN 6320-00-925-0558
NSN 5990-01-510-4699