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 5925-00-678-3789
NSN 6110-01-294-8951
NSN 6130-01-656-6155
NSN 5998-00-568-1849
NSN 6110-00-271-9928
NSN 2925-01-629-9416
NSN 5930-01-039-0496
NSN 5999-01-211-5462
NSN 6620-01-195-3355
NSN 5960-01-344-2604
NSN 6645-01-205-3869
NSN 5998-01-390-5949