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 5985-01-460-6347
NSN 5996-00-103-2716
NSN 6620-00-621-1320
NSN 6240-01-621-2774
NSN 4140-01-258-0071
NSN 5905-00-565-6162
NSN 6610-01-141-7014
NSN 6145-00-990-9700
NSN 5999-01-422-9201
NSN 4140-00-505-1684
NSN 6610-01-660-3966
NSN 5930-01-245-0785