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 4140-01-197-0406
NSN 5920-01-492-5788
NSN 6150-00-141-8793
NSN 5855-00-610-4052
NSN 4140-01-580-0277
NSN 6145-01-554-5701
NSN 6620-00-115-2501
NSN 5855-00-004-0904
NSN 5835-01-412-0344
NSN 5930-01-269-8329
NSN 7035-00-541-8516
NSN 2925-01-259-7092