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 5975-01-490-7775
NSN 6105-00-762-0100
NSN 5960-00-441-5147
NSN 6150-00-133-6650
NSN 6145-01-605-0948
NSN 6645-01-508-9074
NSN 7035-00-481-5182
NSN 5835-01-576-5307
NSN 6645-00-739-6718
NSN 5999-01-626-2866
NSN 5905-01-623-5584
NSN 5905-01-310-8460