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 6135-01-226-1396
NSN 6220-01-381-1793
NSN 6320-00-228-5678
NSN 5930-01-554-5209
NSN 5998-01-111-2723
NSN 5998-01-562-6625
NSN 5905-01-291-6835
NSN 5960-01-114-0197
NSN 5915-01-100-7062
NSN 5950-01-547-7439
NSN 6150-01-244-1999
NSN 5960-00-781-4084