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 5915-00-059-5629
NSN 6645-00-911-2999
NSN 6150-01-068-8359
NSN 5895-01-629-2883
NSN 6240-01-353-9709
NSN 5895-00-147-9998
NSN 5905-01-338-5506
NSN 5985-01-416-3380
NSN 5975-01-151-0299
NSN 6610-00-686-5817
NSN 5945-01-463-2802
NSN 6105-01-418-8708