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 6620-00-720-3278
NSN 4140-00-892-2136
NSN 6320-01-516-3836
NSN 5998-01-471-8428
NSN 5855-00-631-4565
NSN 6130-00-256-3168
NSN 5990-00-226-1152
NSN 2925-00-167-6762
NSN 2925-01-279-1558
NSN 5835-00-505-2516
NSN 6105-01-042-5688
NSN 6320-00-480-7922