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 5835-01-389-8218
NSN 6130-00-216-7376
NSN 5965-01-392-6179
NSN 5910-01-588-0767
NSN 6135-00-269-5843
NSN 5910-01-409-9230
NSN 6650-00-349-8732
NSN 5945-01-551-1714
NSN 5990-01-352-5255
NSN 6320-01-216-1678
NSN 5999-01-419-5014
NSN 5990-01-517-7848