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 5925-01-086-1441
NSN 7035-00-153-3826
NSN 6220-00-842-2483
NSN 5999-01-500-2638
NSN 6130-01-445-8658
NSN 6150-00-431-3723
NSN 5965-00-481-9737
NSN 5895-01-440-0600
NSN 5835-01-553-6772
NSN 6320-01-564-0893
NSN 5855-01-264-4610
NSN 6610-00-896-4914