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 5975-00-705-7667
NSN 6240-01-350-3533
NSN 5975-01-304-8530
NSN 6130-00-331-1652
NSN 5935-00-009-4481
NSN 6145-01-482-4647
NSN 5999-01-044-3196
NSN 5998-01-491-4149
NSN 6220-01-092-4533
NSN 5998-00-959-6018
NSN 5895-01-065-1123
NSN 6645-01-237-7876