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 6240-00-255-6976
NSN 6150-01-263-4437
NSN 6150-00-624-6281
NSN 5905-01-312-2597
NSN 6320-00-139-1090
NSN 6135-01-448-0471
NSN 5965-00-187-5523
NSN 6650-01-139-6467
NSN 5965-00-961-1627
NSN 5985-01-196-5263
NSN 6610-01-502-8868
NSN 5915-00-786-6300