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 6240-00-557-7471
NSN 5996-01-576-9852
NSN 5925-01-608-2640
NSN 5999-00-753-7450
NSN 5915-01-577-0261
NSN 5895-01-434-6341
NSN 6610-01-338-5338
NSN 5855-00-149-0766
NSN 6145-01-528-3421
NSN 6685-01-487-5111
NSN 6135-01-185-3614
NSN 6645-01-209-0264