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 6320-00-925-0558
NSN 5905-00-808-2886
NSN 7035-01-096-8912
NSN 6105-00-344-0340
NSN 5915-01-246-8571
NSN 6110-00-157-1699
NSN 5950-01-065-0858
NSN 4140-01-100-1223
NSN 6150-00-938-2973
NSN 5895-01-401-5388
NSN 5855-00-400-2622
NSN 6110-00-596-9124