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 5960-01-005-2568
NSN 5945-01-092-1025
NSN 6610-01-446-7635
NSN 5945-01-173-6327
NSN 6145-01-162-4085
NSN 5999-00-269-5320
NSN 6135-01-185-3614
NSN 6620-01-408-0825
NSN 5895-01-406-3053
NSN 6620-00-631-4599
NSN 5915-00-660-4905
NSN 5930-01-191-9696