A nut having one convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. An integral feature is incorporated for locking on the threads of a mating member. See also nut (1), self-locking, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 6620-00-426-6884
NSN 6650-00-299-9681
NSN 6610-01-009-4747
NSN 6110-01-551-1623
NSN 5910-01-490-6867
NSN 5920-00-636-1808
NSN 5950-00-010-0793
NSN 5960-01-137-2329
NSN 6130-01-659-3582
NSN 6135-01-529-0122
NSN 5915-01-633-9845
NSN 6135-00-998-5884