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 6620-00-278-7313
NSN 5905-00-013-1250
NSN 5945-01-554-3529
NSN 6610-01-419-7130
NSN 6130-01-440-7591
NSN 6320-01-488-5581
NSN 6135-01-468-6491
NSN 5915-00-883-9287
NSN 6110-01-108-1641
NSN 5855-00-245-8461
NSN 5835-00-949-3018
NSN 7035-00-679-9027