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 5925-01-634-0664
NSN 2925-01-058-1718
NSN 6110-01-652-2293
NSN 6620-01-508-9041
NSN 5905-01-418-2230
NSN 5930-00-011-8284
NSN 4140-00-529-7463
NSN 6320-00-681-1324
NSN 6105-01-459-4831
NSN 6620-01-435-8672
NSN 5965-01-393-8818
NSN 5945-00-251-3915