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 5985-01-209-3233
NSN 5905-01-344-7453
NSN 6145-01-163-4225
NSN 6220-01-175-9052
NSN 5930-01-200-6828
NSN 5990-00-446-0518
NSN 5920-00-259-7294
NSN 6685-00-038-7886
NSN 5950-01-106-3961
NSN 5999-01-579-8668
NSN 6620-01-207-0639
NSN 5935-01-055-8595