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 5985-01-549-4411
NSN 5925-00-825-6068
NSN 5999-00-278-5563
NSN 6650-01-571-1055
NSN 5990-01-130-4959
NSN 5910-01-605-7651
NSN 2925-01-437-1128
NSN 5998-01-607-1307
NSN 6220-01-196-5969
NSN 5999-01-427-3702
NSN 5855-01-364-1005
NSN 5905-00-118-1040