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 2925-01-556-0333
NSN 5895-01-501-5901
NSN 6105-01-539-7549
NSN 6145-01-435-5261
NSN 5910-00-025-0451
NSN 5835-00-447-1924
NSN 6240-01-562-0888
NSN 4140-00-643-3744
NSN 5935-01-411-4290
NSN 5855-01-397-2487
NSN 5905-01-216-5196
NSN 5920-01-277-7981