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 6130-00-399-0729
NSN 5996-01-136-8552
NSN 5965-01-397-8389
NSN 5975-00-525-2331
NSN 5920-00-503-2203
NSN 6620-01-232-0680
NSN 5920-01-432-1328
NSN 6685-01-188-7379
NSN 5905-01-392-2291
NSN 6110-01-256-7693
NSN 7035-01-478-0212
NSN 5985-01-516-2662