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 6105-01-247-4804
NSN 5920-01-225-7610
NSN 5905-01-158-5549
NSN 6150-00-104-2086
NSN 2925-01-267-1598
NSN 6130-01-135-7890
NSN 5975-01-275-2767
NSN 2925-01-022-3181
NSN 6130-00-277-7321
NSN 5855-01-308-0955
NSN 5935-01-068-5977
NSN 6110-00-521-8932