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 5925-00-596-2146
NSN 5905-01-013-9558
NSN 6610-01-282-9953
NSN 4140-00-256-9913
NSN 5998-01-632-7372
NSN 7035-01-083-0282
NSN 5915-00-110-8627
NSN 5920-00-232-6419
NSN 6645-00-988-4427
NSN 6240-00-938-8687
NSN 5990-01-318-3238
NSN 5925-00-078-9566