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 6150-01-416-8854
NSN 6145-00-229-4509
NSN 6130-01-348-1595
NSN 5998-01-345-8480
NSN 5945-00-306-0986
NSN 5996-01-014-6103
NSN 5975-00-189-0857
NSN 5950-01-510-4591
NSN 5965-00-849-1313
NSN 5998-00-740-4522
NSN 5835-01-093-8244
NSN 6620-00-473-3692