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 5935-01-027-4355
NSN 5895-00-766-8042
NSN 4140-00-635-9195
NSN 6105-01-022-5440
NSN 5945-01-449-1845
NSN 5835-00-005-7909
NSN 6320-00-089-9426
NSN 6620-00-394-1812
NSN 5905-01-387-2993
NSN 5998-01-334-3596
NSN 6130-00-233-6197
NSN 6645-00-658-7838