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 2925-00-660-8131
NSN 5930-01-633-3742
NSN 5920-00-015-7824
NSN 5990-00-802-7500
NSN 6240-00-660-8849
NSN 7035-01-024-9511
NSN 6685-00-484-2167
NSN 5950-01-655-2506
NSN 6650-00-195-7519
NSN 2925-00-278-9468
NSN 5920-00-398-0766
NSN 6240-01-103-7515