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 6130-00-491-2060
NSN 5990-01-312-2638
NSN 6105-00-470-0441
NSN 6130-00-613-7448
NSN 6220-01-303-4577
NSN 5999-00-083-3369
NSN 5855-01-335-8907
NSN 5855-01-492-2042
NSN 5975-01-561-7772
NSN 5855-01-435-8075
NSN 6320-01-512-2031
NSN 5910-01-383-8224