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 5975-01-644-9428
NSN 5835-01-234-3524
NSN 6685-01-338-6131
NSN 5935-01-047-1993
NSN 5895-00-121-3366
NSN 6620-00-526-8996
NSN 6135-01-610-2098
NSN 6110-00-988-6875
NSN 5990-00-763-5526
NSN 6620-00-836-0399
NSN 6130-01-370-7257
NSN 6150-00-342-9765