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 5998-00-522-6718
NSN 5990-01-529-7307
NSN 5935-01-378-6938
NSN 5935-01-024-1979
NSN 5990-00-890-3822
NSN 5895-01-130-1617
NSN 5960-00-471-6286
NSN 5910-01-415-2463
NSN 7035-01-376-3843
NSN 5996-00-217-2654
NSN 6130-01-435-7169
NSN 5950-01-630-9444