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 5990-00-940-8528
NSN 6145-01-277-3270
NSN 6150-01-462-4549
NSN 6135-01-582-2589
NSN 5975-01-025-5794
NSN 6130-01-465-4548
NSN 7035-01-644-5251
NSN 5998-01-558-5601
NSN 6110-01-218-2996
NSN 5935-01-387-5868
NSN 5930-01-034-9317
NSN 6150-01-600-3125