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 5999-01-054-3949
NSN 5855-00-821-7512
NSN 5990-01-423-8189
NSN 6240-01-053-0666
NSN 5855-01-486-9924
NSN 6650-00-824-5510
NSN 5999-01-518-3765
NSN 6130-01-556-2546
NSN 5999-01-332-6655
NSN 6150-01-338-3602
NSN 5996-00-339-7078
NSN 5935-01-644-5489