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 5998-01-591-5603
NSN 5999-00-660-8480
NSN 5998-00-794-2978
NSN 5998-01-057-7985
NSN 5935-01-052-9436
NSN 5960-01-490-7030
NSN 5925-01-067-8301
NSN 6240-01-565-3840
NSN 6240-01-421-3626
NSN 5855-01-147-6024
NSN 6110-01-367-9454
NSN 5930-00-703-7847