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 6110-01-371-1978
NSN 5920-00-825-0352
NSN 5950-01-311-6377
NSN 5999-01-360-6680
NSN 5998-01-111-8681
NSN 5935-01-567-2104
NSN 6130-00-093-4181
NSN 5915-01-633-9845
NSN 6220-01-361-5182
NSN 5965-00-175-8972
NSN 5910-01-391-1268
NSN 5999-00-057-2929