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 5925-01-112-0320
NSN 5920-00-993-4906
NSN 6685-01-287-9974
NSN 6150-01-317-1901
NSN 5925-01-660-1552
NSN 5925-01-121-0401
NSN 6610-01-656-0041
NSN 5998-01-369-0128
NSN 6220-00-117-4547
NSN 5935-01-212-9729
NSN 6610-00-527-8892
NSN 6220-01-286-6720