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 6320-01-573-6490
NSN 6610-01-469-6235
NSN 5935-01-583-4532
NSN 6150-01-597-2861
NSN 6650-01-330-4857
NSN 5935-01-206-4968
NSN 6620-01-435-2784
NSN 6130-00-456-0206
NSN 6620-00-203-9466
NSN 5915-00-952-3049
NSN 5930-01-533-3710
NSN 5945-01-388-1658