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 5996-01-600-7954
NSN 5945-01-428-4033
NSN 5835-01-380-5086
NSN 6650-01-040-9236
NSN 5996-00-434-4005
NSN 6135-01-565-3284
NSN 6220-00-757-2025
NSN 5835-00-707-6266
NSN 5965-00-289-6280
NSN 5895-01-462-8836
NSN 7035-01-651-2857
NSN 4140-01-608-7877