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 6650-00-236-0724
NSN 5998-01-535-5929
NSN 5945-00-167-7544
NSN 6320-01-524-9488
NSN 6620-01-054-9346
NSN 5985-01-415-0070
NSN 2925-00-088-6790
NSN 5935-00-960-7651
NSN 6135-01-156-4627
NSN 5950-00-542-2168
NSN 6610-01-469-6012
NSN 6645-01-588-4059