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 5996-01-495-0763
NSN 6145-00-132-4800
NSN 5996-01-500-1830
NSN 6105-00-476-9541
NSN 6135-00-756-6149
NSN 6105-01-505-3367
NSN 6135-01-566-1034
NSN 5835-01-416-6455
NSN 6610-00-826-7235
NSN 6610-01-313-1473
NSN 2925-00-103-6822
NSN 5998-01-352-4137