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 5910-01-569-3771
NSN 5945-00-204-9949
NSN 4140-00-430-5155
NSN 4140-01-289-1264
NSN 5945-00-401-1188
NSN 5950-00-403-4382
NSN 5990-00-905-5537
NSN 5985-01-512-8837
NSN 6240-00-197-6819
NSN 5998-01-144-3540
NSN 6150-01-088-7102
NSN 6320-01-388-3125