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 6135-01-633-8502
NSN 4140-00-170-5152
NSN 5920-00-445-3585
NSN 6130-01-121-0962
NSN 5935-01-261-4657
NSN 5910-00-968-8021
NSN 6150-00-089-9503
NSN 5945-00-752-1002
NSN 6135-00-209-6918
NSN 5960-01-504-1892
NSN 6135-00-635-9187
NSN 6620-01-274-3423