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 6105-01-188-0390
NSN 5855-00-185-1560
NSN 6645-00-023-8386
NSN 5965-01-420-6613
NSN 6685-00-642-0533
NSN 5925-01-272-2984
NSN 5999-01-167-7522
NSN 5915-01-632-5104
NSN 5930-01-350-3529
NSN 5935-00-284-3984
NSN 5960-01-375-6815
NSN 6135-01-400-2947