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 2925-00-936-9344
NSN 5935-01-314-6199
NSN 5920-00-397-0802
NSN 6240-01-080-9620
NSN 6240-01-177-9361
NSN 6320-00-194-4252
NSN 5855-00-189-6066
NSN 6320-00-360-1744
NSN 6320-01-166-3602
NSN 6110-01-569-7853
NSN 5950-01-165-7089
NSN 6320-01-359-3921