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 5835-01-561-2959
NSN 6645-01-484-4158
NSN 6135-00-461-3590
NSN 5990-01-480-9938
NSN 6645-01-159-8787
NSN 5960-01-589-6846
NSN 6150-01-290-8781
NSN 5905-01-015-6024
NSN 5855-00-138-2386
NSN 6610-00-879-2788
NSN 6150-00-681-4511
NSN 5960-00-876-9262