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 5990-00-705-4350
NSN 5998-01-406-9082
NSN 2925-01-079-6229
NSN 5895-01-537-0131
NSN 6620-01-290-2973
NSN 6145-01-240-8993
NSN 6650-01-537-5388
NSN 6150-00-374-7691
NSN 6220-01-277-5812
NSN 6110-00-424-4557
NSN 6620-00-635-7347
NSN 6610-01-393-9997