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 6130-01-300-2449
NSN 2925-01-280-1911
NSN 6150-01-323-6916
NSN 5960-01-074-2557
NSN 6650-01-483-2399
NSN 6220-00-654-7362
NSN 6105-01-247-2269
NSN 5998-01-481-4301
NSN 5945-01-234-7283
NSN 5945-00-057-2401
NSN 5920-01-469-8991
NSN 5895-00-809-4005