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 6105-01-559-6751
NSN 5925-01-110-8835
NSN 6105-01-017-5713
NSN 5905-01-205-0897
NSN 5935-00-970-9104
NSN 6240-00-456-2578
NSN 5990-01-581-5103
NSN 5905-00-244-1530
NSN 5998-01-600-4719
NSN 5945-00-552-7728
NSN 5998-01-448-5381
NSN 6610-01-463-5368