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 5998-01-018-1249
NSN 5895-01-336-1885
NSN 5990-00-254-4825
NSN 5905-00-975-4115
NSN 5930-00-429-5699
NSN 5960-00-932-1428
NSN 5945-01-467-3236
NSN 5915-01-209-2788
NSN 5835-00-523-0736
NSN 5915-01-133-2449
NSN 5920-01-216-0920
NSN 5925-00-290-4451