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 4140-00-953-2004
NSN 6110-01-157-2112
NSN 6240-00-471-5399
NSN 5998-01-338-3280
NSN 5855-00-911-1370
NSN 5920-01-583-2134
NSN 6110-01-391-6497
NSN 5925-00-815-8646
NSN 4140-01-342-4703
NSN 6105-00-087-7690
NSN 5855-01-223-0833
NSN 5950-00-813-8398