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 6105-01-555-8757
NSN 5999-01-386-2643
NSN 6150-01-408-4662
NSN 5945-01-139-5179
NSN 5855-01-037-7342
NSN 6145-00-791-9820
NSN 5945-00-697-7257
NSN 5990-01-092-1963
NSN 5975-00-556-5575
NSN 6320-01-089-9086
NSN 5895-01-353-2480
NSN 5835-01-057-8601