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 5935-01-204-8901
NSN 5895-01-512-0488
NSN 4140-00-293-7847
NSN 6650-01-212-3964
NSN 5925-01-528-7786
NSN 5835-01-219-0586
NSN 6110-01-156-7524
NSN 6150-01-504-6808
NSN 6150-00-571-3353
NSN 2925-01-157-9204
NSN 4140-01-599-9383
NSN 6135-01-487-6275