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 5960-01-476-5686
NSN 5910-01-010-4058
NSN 5999-00-284-4342
NSN 6135-00-152-8729
NSN 5990-00-932-3070
NSN 5960-01-453-6170
NSN 5930-01-062-1560
NSN 6240-01-100-2597
NSN 5950-01-420-6385
NSN 5996-01-241-4775
NSN 4140-01-213-6162
NSN 6135-01-469-7574