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 5945-00-177-2725
NSN 6320-00-925-0558
NSN 5915-01-050-8214
NSN 5945-01-529-7321
NSN 4140-00-195-0955
NSN 4140-00-699-0904
NSN 5835-01-362-0305
NSN 6135-01-054-2098
NSN 5996-01-165-9344
NSN 5965-01-451-7313
NSN 5990-01-411-5930
NSN 5920-01-398-0580