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 6685-00-190-2025
NSN 5920-01-485-5572
NSN 6110-00-473-2101
NSN 5895-00-081-7836
NSN 5835-01-203-8295
NSN 6685-01-421-4070
NSN 5935-00-450-9735
NSN 2925-00-167-2641
NSN 6130-01-211-6246
NSN 5998-01-370-1825
NSN 5996-01-131-9353
NSN 5990-00-161-2797