A nut, flat on top and bottom having 6 flat sides. For items which have internal tapered or straight (parallel) pipe threads, specific electrical conduit size designation, and which when installed, provide a method of tightening to lock the connection, see locknut, electrical conduit. See also locknut, tube fitting. For items having a thickness (or height) exceeding two times the width across the flats, use post, electrical-mechanical equipment. (when height or thickness and/or width across the flats is designated as a tolerance dimension, the maximum dimension will be used to determine compliance.)
Classification: Copper screws, nuts, bolts, rivets, and other fasteners not threaded
NSN 5925-01-392-9915
NSN 6150-00-279-9337
NSN 6150-01-145-5156
NSN 5935-01-362-4168
NSN 5985-01-634-0635
NSN 6610-01-655-8516
NSN 6620-01-652-2078
NSN 6110-01-116-3017
NSN 6320-01-380-7372
NSN 5996-00-897-8867
NSN 4140-01-424-5216
NSN 6620-00-902-9843