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 5905-01-103-7218
NSN 5925-01-429-0392
NSN 6610-01-445-6362
NSN 6135-00-262-6807
NSN 6650-01-258-0811
NSN 6650-00-513-5651
NSN 6130-01-124-6352
NSN 6610-01-189-3001
NSN 6220-00-084-4240
NSN 6135-01-142-2417
NSN 5950-01-207-0751
NSN 6105-01-122-5910