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 6610-00-663-8815
NSN 6105-00-923-8514
NSN 6135-01-435-6503
NSN 5915-00-128-8808
NSN 5935-00-869-7049
NSN 6130-00-662-8557
NSN 5915-00-854-3120
NSN 4140-01-492-3258
NSN 6240-01-391-0399
NSN 5975-01-648-2016
NSN 6110-01-633-6129
NSN 6620-00-555-3992