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 6685-01-207-1846
NSN 6145-00-283-3682
NSN 5910-00-442-5554
NSN 5835-01-191-3405
NSN 6145-01-602-9331
NSN 5975-01-247-8846
NSN 6130-00-387-2051
NSN 5920-00-655-4251
NSN 6220-01-468-1969
NSN 5975-01-467-6189
NSN 4140-01-007-0590
NSN 6105-01-393-0619