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 5930-00-646-0707
NSN 5915-01-152-2625
NSN 5835-00-807-5632
NSN 5920-01-014-0611
NSN 6620-01-397-8683
NSN 5935-00-863-3686
NSN 5925-00-660-3892
NSN 6145-00-542-6202
NSN 6220-01-298-4581
NSN 5925-00-182-7452
NSN 5920-01-589-9313
NSN 6620-01-365-1499