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 5999-01-100-6867
NSN 5935-00-233-6198
NSN 5925-01-426-6923
NSN 2925-00-881-3770
NSN 6650-01-246-8262
NSN 5835-01-399-5820
NSN 6150-01-351-1152
NSN 6240-00-010-7334
NSN 5905-01-043-1334
NSN 5835-01-478-0157
NSN 6650-01-024-9554
NSN 6320-01-426-1324