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 5996-01-181-5438
NSN 6620-01-515-9130
NSN 5935-00-753-7895
NSN 4140-01-579-3686
NSN 5990-01-315-3754
NSN 6130-01-496-3310
NSN 6320-00-823-2015
NSN 5935-01-655-3812
NSN 6145-01-061-9503
NSN 6110-01-406-3623
NSN 5925-01-206-4330
NSN 5920-01-356-4122