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 6105-01-102-3761
NSN 5835-00-853-7785
NSN 2925-00-564-1692
NSN 5910-00-446-6571
NSN 5835-00-572-7445
NSN 6150-01-272-1071
NSN 5895-01-643-1629
NSN 6645-00-551-8291
NSN 5935-00-293-1863
NSN 6685-00-104-7149
NSN 5855-01-389-8884
NSN 6620-00-064-7992