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 7035-01-461-6429
NSN 5895-01-476-7247
NSN 6320-01-631-7828
NSN 5905-01-023-9003
NSN 5910-01-088-5883
NSN 7035-00-437-7950
NSN 5835-00-891-2784
NSN 6105-01-626-9622
NSN 5935-00-540-8615
NSN 5910-00-613-6756
NSN 6110-01-424-0078
NSN 5895-01-270-9165