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 6240-01-592-3176
NSN 5930-00-636-8888
NSN 6685-00-138-7250
NSN 5935-01-399-5500
NSN 5975-00-186-8884
NSN 6620-01-339-1238
NSN 2925-00-449-1604
NSN 5855-00-256-5562
NSN 5835-00-145-8926
NSN 5920-01-644-1648
NSN 2925-01-336-2820
NSN 5975-01-634-0678