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 4140-01-552-9754
NSN 5835-00-173-4456
NSN 6130-00-359-2747
NSN 5855-01-191-3404
NSN 5960-01-381-2478
NSN 5915-01-025-6169
NSN 5975-00-817-1781
NSN 5990-01-573-1634
NSN 5998-00-223-5443
NSN 5895-00-483-9720
NSN 6150-01-383-4976
NSN 5965-01-198-3256