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 5945-01-270-8624
NSN 2925-01-411-4666
NSN 5920-01-660-1950
NSN 5855-00-943-3894
NSN 6220-01-229-3722
NSN 5985-01-229-8756
NSN 6220-01-647-7737
NSN 5985-00-959-2072
NSN 6135-01-481-4941
NSN 6145-01-199-4570
NSN 5920-00-757-1900
NSN 6150-01-076-4811