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 5999-00-909-1069
NSN 5990-01-252-8175
NSN 5975-01-027-9132
NSN 5998-00-388-0259
NSN 5965-01-497-5961
NSN 6645-00-033-8714
NSN 6135-00-016-0071
NSN 6130-00-027-5186
NSN 6610-00-076-0801
NSN 6110-00-242-8123
NSN 5905-01-084-1333
NSN 5975-01-346-3469