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 5935-00-823-0993
NSN 5925-01-314-0587
NSN 4140-01-448-9725
NSN 5990-01-641-5782
NSN 6145-01-273-0077
NSN 6135-00-016-0071
NSN 5910-00-420-9057
NSN 5975-01-518-4172
NSN 6110-00-169-5722
NSN 5910-00-605-9659
NSN 6130-01-004-7794
NSN 5835-01-268-1924