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 5910-01-344-5556
NSN 5920-01-474-1504
NSN 5905-01-450-0166
NSN 7035-00-703-3535
NSN 6320-00-593-0379
NSN 6685-01-032-0978
NSN 6220-00-128-1670
NSN 6645-00-684-3424
NSN 6145-01-483-1292
NSN 5930-00-538-6928
NSN 5905-00-001-5892
NSN 2925-01-217-0465