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 6105-01-090-0661
NSN 6145-01-199-2311
NSN 5999-01-386-5327
NSN 5930-00-437-9702
NSN 5905-00-147-1620
NSN 6135-00-900-2139
NSN 5935-01-406-5071
NSN 5855-01-147-4785
NSN 6610-01-400-3880
NSN 6620-01-320-7656
NSN 5930-00-964-6350
NSN 5998-01-535-6413