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 6610-01-033-1748
NSN 5945-01-139-7093
NSN 5925-01-334-8402
NSN 6110-01-318-7690
NSN 5930-00-112-9126
NSN 7035-01-357-3726
NSN 5920-01-560-1798
NSN 6685-01-168-8391
NSN 5998-01-361-4989
NSN 5855-01-495-1038
NSN 5975-00-859-7009
NSN 5905-01-044-4933