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 5905-01-389-3621
NSN 5835-01-113-4604
NSN 6645-00-426-3719
NSN 5935-01-365-0489
NSN 6220-01-177-8355
NSN 5999-01-184-4309
NSN 6685-01-170-5651
NSN 6320-00-371-8335
NSN 6645-01-461-7704
NSN 5965-01-291-0384
NSN 4140-01-447-4826
NSN 6130-01-464-4286