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 5935-00-837-7281
NSN 5925-00-552-2649
NSN 5975-00-437-3706
NSN 6650-00-575-7487
NSN 5999-01-279-5770
NSN 6620-01-505-7921
NSN 6105-01-004-1808
NSN 6650-01-469-1316
NSN 6650-01-076-1997
NSN 5835-00-491-3834
NSN 5990-00-008-0786
NSN 6135-01-357-0621