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 6645-01-500-0827
NSN 6135-00-269-5843
NSN 7035-01-524-4151
NSN 6105-01-472-3183
NSN 6645-00-602-5968
NSN 6240-00-028-9568
NSN 6610-01-204-2571
NSN 5930-00-740-9384
NSN 6240-00-987-5464
NSN 5998-00-978-7705
NSN 5998-00-357-4912
NSN 5855-01-529-3016