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 6610-01-290-2627
NSN 6685-01-310-8950
NSN 2925-00-288-1394
NSN 5996-01-633-7979
NSN 4140-01-059-2095
NSN 6650-01-646-6909
NSN 6650-01-475-3714
NSN 5905-01-263-2084
NSN 5895-01-250-2422
NSN 6150-01-646-7070
NSN 6220-00-812-0515
NSN 5855-01-169-4275