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 5990-00-433-3445
NSN 6145-00-261-4527
NSN 4140-00-080-8740
NSN 5945-01-384-3198
NSN 6645-00-402-5622
NSN 5999-00-476-4964
NSN 6220-01-127-8143
NSN 6145-01-253-0121
NSN 5930-00-828-8363
NSN 6220-00-149-0977
NSN 5935-00-937-7374
NSN 5895-00-079-9693