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 5935-01-199-4771
NSN 5950-01-423-3654
NSN 5975-01-594-3193
NSN 5965-01-623-3674
NSN 5990-01-041-4351
NSN 5999-01-513-9683
NSN 5905-01-348-0329
NSN 5910-00-175-8017
NSN 6620-01-426-2220
NSN 5915-01-642-1412
NSN 4140-00-555-3856
NSN 6610-00-866-7333