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 6130-00-702-0402
NSN 5960-01-249-2462
NSN 6645-01-603-1004
NSN 5985-01-074-8896
NSN 6110-01-269-5943
NSN 5950-01-175-8100
NSN 5895-01-454-9909
NSN 5960-01-649-1341
NSN 5835-00-408-5499
NSN 5990-00-359-9839
NSN 6240-00-793-7969
NSN 6135-01-424-1114