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 6240-01-442-0435
NSN 6220-00-113-0063
NSN 6320-00-857-4073
NSN 5950-00-753-7577
NSN 5975-01-077-0509
NSN 6320-00-270-8222
NSN 6610-01-153-8625
NSN 2925-01-619-4825
NSN 5910-01-432-6140
NSN 5996-00-932-3796
NSN 5985-00-651-5983
NSN 6130-01-391-2676