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 5990-00-727-0723
NSN 5925-01-609-0631
NSN 5910-00-447-4315
NSN 6150-01-213-8811
NSN 6240-01-360-0225
NSN 6220-01-014-5351
NSN 4140-01-378-1032
NSN 5935-01-213-6318
NSN 5910-01-324-7176
NSN 5935-01-034-6467
NSN 5895-00-099-9532
NSN 5915-00-459-0855