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 6645-01-363-9028
NSN 5996-01-621-7893
NSN 6610-00-960-4487
NSN 6110-01-275-2780
NSN 5996-01-429-5712
NSN 5855-01-417-3250
NSN 5950-00-594-9172
NSN 6610-00-400-1252
NSN 6105-00-262-6843
NSN 5945-00-174-0810
NSN 5998-00-066-7450
NSN 6610-01-606-8788