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 6240-00-594-7138
NSN 6620-01-131-3201
NSN 5945-01-127-7139
NSN 5999-00-991-8428
NSN 5935-01-540-9997
NSN 5950-00-776-8744
NSN 5930-00-151-4787
NSN 5920-01-316-5284
NSN 6320-01-296-3181
NSN 6650-00-021-9555
NSN 5855-01-232-6883
NSN 6110-01-047-5078