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 5835-01-424-0054
NSN 5945-01-547-3588
NSN 6620-01-106-3553
NSN 6685-00-707-4842
NSN 6220-00-717-5099
NSN 5915-01-207-4500
NSN 5965-01-396-7508
NSN 5999-01-436-2297
NSN 6135-01-077-5705
NSN 5975-01-447-3419
NSN 6220-01-208-4429
NSN 7035-01-338-9971