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 5855-01-201-4857
NSN 5930-00-983-0750
NSN 5965-00-522-0922
NSN 5855-01-068-3683
NSN 2925-00-922-8953
NSN 4140-01-322-8491
NSN 5985-01-386-4419
NSN 5975-01-390-0401
NSN 2925-01-185-9144
NSN 6645-01-149-4231
NSN 5990-01-572-3137
NSN 5905-01-230-5095