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 6320-01-279-0343
NSN 6150-01-434-2196
NSN 5855-01-425-6340
NSN 5855-00-688-9954
NSN 6130-00-821-3500
NSN 6620-01-384-2105
NSN 4140-00-563-7648
NSN 5915-00-518-4656
NSN 5990-00-993-3130
NSN 5945-00-076-2588
NSN 5855-00-548-4742
NSN 5945-01-551-3507