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 6220-01-641-3738
NSN 6620-01-367-2597
NSN 5996-01-121-8430
NSN 5920-01-176-1413
NSN 5999-01-481-3973
NSN 6610-01-415-8008
NSN 5998-00-359-1824
NSN 5835-01-350-0566
NSN 5960-01-319-3932
NSN 5920-01-050-0471
NSN 5835-00-257-2852
NSN 5999-01-193-0603