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 5895-01-462-3709
NSN 5965-01-141-5709
NSN 6610-00-180-4565
NSN 5999-00-276-9299
NSN 5960-00-988-5737
NSN 5855-00-782-7714
NSN 6320-00-931-4855
NSN 6105-01-554-2271
NSN 5930-01-599-4042
NSN 6685-01-421-4403
NSN 5990-00-226-1152
NSN 5975-00-657-1544