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 6130-00-952-0819
NSN 5930-00-656-8173
NSN 5925-01-163-9088
NSN 5950-01-230-4148
NSN 6150-00-258-3761
NSN 5999-00-147-7467
NSN 7035-01-658-1623
NSN 5965-01-518-0623
NSN 2925-01-374-2402
NSN 5990-00-226-1152
NSN 6610-01-023-3220
NSN 6220-00-524-6447