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 6130-00-627-8840
NSN 5935-01-438-4909
NSN 5965-01-338-2181
NSN 5975-01-535-7193
NSN 6135-01-462-6040
NSN 5975-01-499-2690
NSN 5895-01-203-7567
NSN 5965-00-647-3972
NSN 5930-01-513-8197
NSN 5998-01-383-5783
NSN 5945-00-367-2124
NSN 5975-00-293-8166