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 5945-01-345-8551
NSN 5975-01-415-0068
NSN 6685-01-117-2925
NSN 5990-00-269-2226
NSN 6240-01-023-7720
NSN 6650-01-030-5545
NSN 6145-01-483-6567
NSN 6105-01-090-6628
NSN 6610-01-194-1778
NSN 5975-00-122-3228
NSN 5915-01-533-3123
NSN 5935-01-177-4923