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 5915-01-037-1837
NSN 5950-01-332-9190
NSN 7035-01-573-8984
NSN 5950-00-186-0682
NSN 5990-00-274-3225
NSN 6240-00-956-6424
NSN 5996-00-596-7018
NSN 5915-00-249-1641
NSN 5985-01-466-4177
NSN 2925-00-010-9609
NSN 4140-01-221-6863
NSN 5925-00-983-0214