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 6220-00-246-0744
NSN 5920-00-432-7643
NSN 5965-01-231-9125
NSN 6145-01-623-3763
NSN 5835-00-554-0399
NSN 5999-00-501-7201
NSN 5975-00-938-2494
NSN 6620-01-654-7142
NSN 6240-01-569-8709
NSN 5985-01-243-9203
NSN 5935-00-078-9540
NSN 6150-01-407-5196