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 6650-00-555-1061
NSN 5855-01-233-2767
NSN 5965-00-905-6895
NSN 6105-01-277-9152
NSN 5998-01-369-2135
NSN 6645-01-085-8879
NSN 5835-00-262-6146
NSN 6645-01-101-9587
NSN 6685-01-397-2837
NSN 6610-01-583-4364
NSN 5990-01-315-3754
NSN 5910-00-209-6243