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 6240-01-488-9548
NSN 6145-01-574-2867
NSN 5960-01-499-7172
NSN 6135-00-577-8429
NSN 5999-01-537-0277
NSN 5895-01-483-1455
NSN 6650-00-736-8456
NSN 5935-00-489-7687
NSN 5930-00-407-8295
NSN 6240-00-607-4303
NSN 6610-01-371-5039
NSN 5910-00-951-8128