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 5925-01-400-0821
NSN 5910-00-521-6777
NSN 5999-01-057-5223
NSN 5945-00-624-8410
NSN 6145-01-459-8150
NSN 4140-00-933-9401
NSN 4140-01-281-4058
NSN 4140-01-492-1614
NSN 6110-01-472-3641
NSN 5920-00-805-7132
NSN 6650-01-482-6021
NSN 4140-01-409-1764