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 6220-00-823-6688
NSN 5920-00-276-8657
NSN 5975-00-290-1795
NSN 5935-00-737-4925
NSN 5945-01-271-7456
NSN 5999-01-243-8496
NSN 5910-01-417-2597
NSN 6150-00-187-1368
NSN 5945-01-425-2985
NSN 6610-01-514-7181
NSN 5855-01-521-1922
NSN 5960-01-601-5565