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 6610-01-412-4427
NSN 6145-01-247-5434
NSN 5996-01-384-2115
NSN 6650-01-259-5940
NSN 6220-01-516-9470
NSN 6105-00-019-8473
NSN 5998-01-651-2676
NSN 6105-01-527-7997
NSN 5935-01-508-4227
NSN 6110-01-042-8620
NSN 5915-01-410-6828
NSN 5985-00-107-6189