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 6150-01-394-5915
NSN 6145-01-441-2252
NSN 5855-01-454-1538
NSN 5999-01-029-6103
NSN 6145-01-516-7726
NSN 5920-01-270-9989
NSN 5930-01-159-7510
NSN 5996-01-378-5612
NSN 5945-01-480-2722
NSN 4140-01-381-9173
NSN 5910-01-633-9963
NSN 5950-01-322-4926