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 5998-01-187-4248
NSN 5855-01-468-3689
NSN 5950-01-167-8920
NSN 5975-01-415-3331
NSN 6685-01-373-2860
NSN 5835-00-601-1402
NSN 5998-00-816-9198
NSN 2925-01-468-7073
NSN 6130-01-328-2981
NSN 6150-01-574-2730
NSN 5835-00-221-1005
NSN 5950-00-471-4061