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 5990-01-177-2838
NSN 5999-01-658-1382
NSN 5998-01-335-1854
NSN 6685-01-383-1178
NSN 5895-01-348-7442
NSN 5990-00-901-2574
NSN 5985-01-525-9723
NSN 6135-01-505-1293
NSN 5999-01-032-5527
NSN 5835-01-373-9506
NSN 6650-01-625-0018
NSN 5965-01-559-1056