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 5910-01-025-0895
NSN 5945-01-013-9311
NSN 6650-01-594-3888
NSN 6105-00-419-5979
NSN 5999-01-196-9496
NSN 5930-01-032-3316
NSN 5905-01-482-5066
NSN 5950-01-649-5822
NSN 5960-01-533-5162
NSN 5915-01-547-0546
NSN 5990-01-232-9008
NSN 6685-00-617-0503