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 2925-00-149-0760
NSN 5999-00-499-1954
NSN 6685-00-757-5317
NSN 6650-01-471-2171
NSN 5960-01-399-4327
NSN 5930-00-089-6745
NSN 6320-01-033-6624
NSN 5985-01-365-5579
NSN 4140-00-823-9194
NSN 6685-01-472-3787
NSN 6135-01-491-9360
NSN 5950-01-135-7198