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: Nuts of iron or steel
NSN 6320-01-388-3125
NSN 6110-01-416-9129
NSN 5990-01-095-8866
NSN 4140-00-062-1335
NSN 6620-01-197-7665
NSN 5985-01-050-9118
NSN 5965-00-549-0220
NSN 5915-01-209-2788
NSN 5998-01-550-9074
NSN 5920-00-826-0949
NSN 5910-00-274-2855
NSN 6650-01-554-2824