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 5945-00-149-1857
NSN 5895-01-217-6572
NSN 5930-00-468-6560
NSN 5930-01-143-7015
NSN 6150-01-344-3210
NSN 6610-01-354-7963
NSN 6645-00-467-6094
NSN 6610-00-259-2992
NSN 6110-01-334-8912
NSN 5935-01-486-7759
NSN 6645-01-128-0895
NSN 6320-01-384-3850