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 4140-00-224-2133
NSN 5905-01-208-1568
NSN 5999-00-122-2767
NSN 2925-01-224-1885
NSN 6150-00-125-7403
NSN 5985-01-528-0795
NSN 6135-01-142-6456
NSN 6320-01-624-0193
NSN 5945-01-115-2234
NSN 6135-00-477-8847
NSN 5935-01-463-3758
NSN 5895-01-474-5209