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 5990-01-174-6851
NSN 6135-00-107-6662
NSN 5915-00-914-0063
NSN 6650-00-987-5070
NSN 6110-01-510-0762
NSN 6240-01-318-1522
NSN 7035-01-407-6413
NSN 6320-01-166-3602
NSN 5910-00-969-6958
NSN 5950-00-769-4383
NSN 5895-00-912-4745
NSN 5920-01-514-2965