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 6645-00-492-9487
NSN 5935-00-724-0177
NSN 6150-01-430-2564
NSN 5910-01-206-7264
NSN 6645-01-122-2318
NSN 6645-01-385-7033
NSN 5855-01-552-4759
NSN 5985-00-360-6529
NSN 6110-00-929-3469
NSN 5965-00-187-5523
NSN 5996-01-219-6675
NSN 5996-00-342-4923