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 5895-01-013-0093
NSN 6685-01-237-2562
NSN 7035-01-462-0516
NSN 5910-00-009-7162
NSN 6645-00-116-1409
NSN 6130-00-514-1177
NSN 6145-01-597-0131
NSN 5998-00-872-8881
NSN 6320-00-194-4252
NSN 5950-01-316-9505
NSN 5999-01-231-6512
NSN 2925-01-591-4030