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 5905-01-007-1448
NSN 6685-01-281-9525
NSN 5835-01-408-2503
NSN 5910-01-278-0087
NSN 5975-01-537-1448
NSN 6220-00-134-5334
NSN 6620-00-218-4959
NSN 6220-00-825-2783
NSN 6135-00-122-2420
NSN 6685-01-182-6945
NSN 5895-00-167-1117
NSN 5835-01-485-0210