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 5925-01-550-9653
NSN 6620-01-600-7483
NSN 5998-00-169-7565
NSN 6145-00-033-2997
NSN 5950-00-597-3661
NSN 6645-01-060-3627
NSN 5835-00-315-3797
NSN 6135-01-299-7252
NSN 5835-00-888-9422
NSN 5960-00-983-5489
NSN 5990-00-524-2293
NSN 6610-01-257-5808