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 5965-01-642-7660
NSN 5985-01-429-4788
NSN 5960-01-005-9530
NSN 6135-01-508-6083
NSN 6220-01-287-6029
NSN 5950-01-265-1682
NSN 5935-01-649-0328
NSN 5835-00-723-2505
NSN 5920-00-958-6473
NSN 5985-00-708-2193
NSN 2925-00-560-8106
NSN 5835-01-253-6160