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 6240-01-498-9370
NSN 5905-01-209-3504
NSN 5999-00-737-0503
NSN 5835-01-392-0575
NSN 5960-00-723-2793
NSN 5915-00-759-2899
NSN 5998-00-699-2514
NSN 6685-01-604-0263
NSN 7035-00-445-9657
NSN 5960-01-244-6610
NSN 5985-01-653-7735
NSN 5855-00-933-9978