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 5990-00-999-5624
NSN 5998-01-624-8602
NSN 6105-01-488-4917
NSN 6610-01-408-9557
NSN 6130-00-050-4603
NSN 6645-00-803-6417
NSN 6105-00-580-1435
NSN 5950-00-703-5112
NSN 6650-01-310-3437
NSN 5950-01-123-9661
NSN 5950-01-058-0877
NSN 5835-01-614-1900