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 6135-01-455-2233
NSN 6145-01-291-2287
NSN 6645-01-445-5235
NSN 6610-01-454-6582
NSN 4140-01-013-2536
NSN 5915-01-453-3225
NSN 5920-00-900-9255
NSN 5910-01-198-2537
NSN 6105-01-142-5264
NSN 5915-01-501-7997
NSN 5855-00-631-4565
NSN 5930-01-024-9456