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 5960-01-567-1096
NSN 5935-01-571-8756
NSN 5855-01-248-5725
NSN 6220-00-617-9616
NSN 5975-01-346-1681
NSN 6645-00-551-8291
NSN 5905-00-815-2596
NSN 6110-01-516-7194
NSN 5915-01-561-4255
NSN 6220-01-360-8882
NSN 5915-01-464-4926
NSN 5998-01-355-1153