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 6145-00-478-6554
NSN 5835-00-233-6327
NSN 5990-01-091-3567
NSN 5945-01-634-0588
NSN 5996-01-333-2329
NSN 5990-01-652-7373
NSN 5965-00-253-1302
NSN 6105-01-416-3930
NSN 6110-00-819-4917
NSN 6645-00-412-8633
NSN 5855-01-010-4921
NSN 6130-00-481-5993