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.
NSN 5990-01-242-4493
NSN 6610-00-168-2200
NSN 5990-01-442-3520
NSN 4140-00-228-9005
NSN 6685-01-435-1460
NSN 6150-00-012-3732
NSN 5915-01-240-5463
NSN 5999-01-102-1732
NSN 5999-01-197-9969
NSN 5935-00-289-3903
NSN 5925-00-554-4114
NSN 5930-01-415-0207