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 5835-01-149-6855
NSN 5915-01-333-8897
NSN 6645-01-279-7647
NSN 5935-01-360-6240
NSN 5990-01-231-9608
NSN 6145-00-228-2207
NSN 5945-01-324-5979
NSN 5920-01-221-9598
NSN 5990-01-521-7890
NSN 2925-00-305-1980
NSN 5930-01-201-4528
NSN 6320-01-578-6006