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 5905-01-146-8522
NSN 6110-01-322-8585
NSN 6650-01-551-4124
NSN 4140-01-460-5968
NSN 6105-00-240-8612
NSN 5950-01-232-5471
NSN 6240-00-290-4185
NSN 2925-00-311-0825
NSN 5950-00-789-4126
NSN 6150-01-005-0150
NSN 5998-01-477-5551
NSN 5925-01-509-4925