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 5990-00-477-1362
NSN 2925-01-308-6220
NSN 6145-00-471-3975
NSN 5996-00-670-0881
NSN 5855-01-382-8725
NSN 5915-00-954-3747
NSN 6110-01-551-4551
NSN 6130-01-558-6617
NSN 6620-01-237-4423
NSN 7035-00-574-4223
NSN 5985-01-307-8449
NSN 5985-00-193-3501