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 6620-00-343-8229
NSN 6110-00-929-1217
NSN 5915-00-226-6551
NSN 5910-01-312-3931
NSN 5960-01-163-8905
NSN 5985-01-288-1785
NSN 5945-00-982-9712
NSN 5975-00-937-6691
NSN 6145-00-033-2997
NSN 4140-00-270-6888
NSN 5965-01-202-1007
NSN 2925-01-327-3069