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 2925-00-862-8550
NSN 6130-01-392-1704
NSN 6145-01-163-9393
NSN 6150-01-365-3705
NSN 5855-01-408-3154
NSN 5925-01-006-9829
NSN 6105-01-582-0293
NSN 6130-00-754-6211
NSN 6145-01-569-6577
NSN 2925-00-973-9413
NSN 5999-00-971-6832
NSN 5975-01-401-5355