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 4140-01-591-4012
NSN 5960-00-733-5024
NSN 5999-01-055-5243
NSN 6610-01-549-4960
NSN 5935-00-189-1069
NSN 5920-01-493-5746
NSN 5960-01-243-0007
NSN 5996-01-094-8888
NSN 6130-01-152-4573
NSN 6150-01-012-2809
NSN 5996-01-293-1573
NSN 5945-01-565-3819