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 6645-00-406-2564
NSN 6610-01-536-4056
NSN 6135-00-416-2898
NSN 5935-01-374-9390
NSN 5835-01-238-3381
NSN 5960-01-449-3349
NSN 2925-01-341-7423
NSN 5915-01-447-3151
NSN 5985-01-341-5350
NSN 5945-01-278-7203
NSN 5975-01-279-7597
NSN 6110-00-115-0882