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 5895-01-018-0725
NSN 5905-00-277-7439
NSN 6130-01-143-1999
NSN 5910-01-147-6948
NSN 6620-01-210-4401
NSN 5975-01-626-4189
NSN 6650-00-355-8920
NSN 5960-01-430-3911
NSN 6650-00-707-1417
NSN 5985-01-250-0894
NSN 6135-01-317-6021
NSN 5985-00-545-7191