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 5935-01-347-0028
NSN 6135-01-265-1384
NSN 7035-00-888-7440
NSN 5990-01-128-7599
NSN 6645-00-467-6094
NSN 5920-01-407-9465
NSN 5835-01-342-7975
NSN 7035-01-227-2546
NSN 5930-00-430-6899
NSN 5895-01-384-8500
NSN 5985-01-618-0373
NSN 6135-01-041-3829