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.)
NSN 5985-00-100-0140
NSN 5996-00-237-5794
NSN 5945-01-037-9147
NSN 6150-01-149-9695
NSN 6135-00-166-5984
NSN 5985-00-158-5316
NSN 5920-00-276-8657
NSN 6150-01-041-7191
NSN 5905-01-102-4788
NSN 5930-00-925-1891
NSN 5930-00-842-0441
NSN 5915-01-472-8977