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 6320-01-166-3602
NSN 5855-01-547-5118
NSN 6620-01-463-1373
NSN 6320-01-495-0512
NSN 5990-01-400-2195
NSN 6685-00-879-6137
NSN 6150-01-331-5686
NSN 6105-01-624-5068
NSN 6105-01-645-4935
NSN 6240-00-222-9392
NSN 6145-01-246-3988
NSN 5910-00-541-1381