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 5910-00-156-7293
NSN 5990-01-386-5561
NSN 6620-00-153-6291
NSN 5965-01-560-0056
NSN 5835-01-266-4382
NSN 6105-00-969-4644
NSN 5930-00-050-7077
NSN 5855-00-481-0019
NSN 5835-01-618-7621
NSN 4140-01-106-7394
NSN 6685-01-368-3262
NSN 6240-01-575-8201