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 5945-01-422-1255
NSN 6135-01-536-4810
NSN 4140-01-469-7519
NSN 5915-00-405-3764
NSN 6145-00-366-5790
NSN 6105-00-690-8918
NSN 6685-01-539-5808
NSN 6620-01-571-7727
NSN 5910-01-183-3370
NSN 5835-01-174-7700
NSN 5945-01-400-1984
NSN 6685-01-634-0611