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 5975-01-188-7460
NSN 5998-00-369-5361
NSN 6110-01-535-2791
NSN 5935-00-515-6967
NSN 6110-01-566-8367
NSN 5905-00-469-5197
NSN 6145-01-380-8032
NSN 5915-01-206-1208
NSN 5945-01-280-5477
NSN 5905-00-547-9896
NSN 5996-01-120-6407
NSN 6610-01-130-0744