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 6620-01-595-7459
NSN 5990-00-876-7893
NSN 5998-00-216-8107
NSN 6610-01-359-6555
NSN 5935-01-422-9787
NSN 5999-01-123-0558
NSN 2925-00-263-2714
NSN 5895-00-969-6690
NSN 2925-00-724-9252
NSN 6650-00-717-8913
NSN 6240-01-195-0243
NSN 5915-01-335-6091