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 6645-00-295-0625
NSN 5895-00-301-4349
NSN 5975-01-441-7955
NSN 5835-01-069-2359
NSN 5965-00-317-1679
NSN 5935-00-453-8699
NSN 5960-01-175-9880
NSN 2925-01-508-4138
NSN 5855-00-479-9819
NSN 5965-01-572-4938
NSN 5905-00-673-4561
NSN 6240-01-435-5486