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.
NSN 5996-00-852-1730
NSN 6145-00-921-4520
NSN 6620-01-443-3526
NSN 6620-01-037-0275
NSN 4140-01-583-9725
NSN 6135-01-581-8843
NSN 5920-01-258-2127
NSN 5960-00-671-4034
NSN 5855-01-394-3688
NSN 5999-01-050-7003
NSN 5895-01-606-9536
NSN 5945-01-352-8916