A nut having 1 convex, spherical bearing surface and 6 flat sides. Items may have a removable collar. See also nut (1), plain, cone seat, hexagon.
Classification: Nuts of iron or steel
NSN 5975-01-534-9441
NSN 5985-01-438-2224
NSN 6610-00-103-1196
NSN 5835-00-841-2650
NSN 6650-00-622-4991
NSN 6240-00-771-2263
NSN 6150-01-373-9864
NSN 5950-00-571-3305
NSN 6645-00-634-9317
NSN 5950-01-219-9667
NSN 6620-01-516-8476
NSN 5835-00-262-6146