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 6650-01-433-1911
NSN 5950-01-088-7477
NSN 5965-00-129-3171
NSN 5905-00-518-2666
NSN 6150-01-406-8168
NSN 4140-01-384-4143
NSN 5895-01-492-6233
NSN 5935-01-510-2072
NSN 5895-00-853-7206
NSN 6650-01-570-0430
NSN 6620-01-431-9176
NSN 5925-00-987-5437