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 6650-00-256-9059
NSN 7035-01-534-9388
NSN 2925-00-907-2709
NSN 5950-00-859-9028
NSN 5990-01-248-8222
NSN 5910-01-434-4082
NSN 6620-01-513-6249
NSN 2925-01-374-2402
NSN 5920-01-088-7205
NSN 4140-01-102-7798
NSN 5935-01-151-9120
NSN 5996-01-633-7979