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 5855-01-606-3587
NSN 5998-00-994-5827
NSN 5998-01-649-5237
NSN 5905-00-231-9801
NSN 6150-00-338-8953
NSN 6240-00-713-0237
NSN 5910-01-600-2613
NSN 5965-00-387-6880
NSN 5996-01-109-1586
NSN 6610-01-281-4590
NSN 5835-01-137-6075
NSN 5855-01-246-4274