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 2925-01-463-8856
NSN 6145-01-363-8518
NSN 5945-01-262-9640
NSN 6610-00-186-9180
NSN 6610-01-214-6680
NSN 6220-01-634-0660
NSN 6650-00-883-4790
NSN 5950-01-358-6975
NSN 5999-00-090-5002
NSN 5996-01-178-8890
NSN 4140-00-224-5533
NSN 5985-00-265-2942