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 5855-01-538-0191
NSN 5998-01-340-4388
NSN 5930-01-434-7486
NSN 6150-01-252-7925
NSN 6110-01-332-2513
NSN 5925-00-890-5035
NSN 6220-01-553-9143
NSN 6135-00-078-9931
NSN 5895-01-004-9050
NSN 5915-00-186-9346
NSN 6620-00-477-7808
NSN 5975-01-634-0678