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 5950-00-072-5237
NSN 5895-01-327-6626
NSN 2925-01-460-1601
NSN 5920-01-432-6620
NSN 6610-00-553-5103
NSN 5985-00-133-9316
NSN 6685-01-467-3035
NSN 5920-00-469-8051
NSN 6610-01-067-4359
NSN 5990-01-446-5546
NSN 5975-01-559-8399
NSN 5996-01-563-0434