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 6620-01-609-6259
NSN 5999-00-777-3199
NSN 5996-00-633-6912
NSN 5985-00-996-1062
NSN 5895-01-634-0630
NSN 6135-01-568-3234
NSN 5950-01-170-5732
NSN 5999-00-719-9664
NSN 5998-01-215-8843
NSN 5945-01-432-7180
NSN 5915-01-599-4159
NSN 5960-01-512-0233