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 5855-00-198-3197
NSN 5925-01-005-4983
NSN 5935-01-054-6332
NSN 6145-01-422-0806
NSN 5905-01-055-5582
NSN 5930-00-175-7069
NSN 6145-01-467-4129
NSN 5855-00-288-1408
NSN 5990-01-343-0449
NSN 6145-01-220-2309
NSN 2925-01-457-2202
NSN 6610-01-476-7412