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 5920-01-153-2690
NSN 5925-01-109-8935
NSN 5895-01-172-4708
NSN 5965-01-381-2527
NSN 5915-01-489-6185
NSN 5998-01-137-6653
NSN 5950-00-188-9839
NSN 5895-01-535-9992
NSN 5999-01-411-1487
NSN 6150-01-461-2615
NSN 6650-01-537-9097
NSN 5999-01-391-6748