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 5920-00-518-4452
NSN 4140-01-187-1819
NSN 5930-01-360-6169
NSN 6650-01-315-6485
NSN 5985-01-023-8011
NSN 6135-00-613-1068
NSN 7035-00-392-5417
NSN 6150-00-200-7644
NSN 2925-01-647-7225
NSN 6110-01-271-6979
NSN 6645-01-499-4798
NSN 5905-01-461-2103