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 5835-01-584-8538
NSN 2925-01-524-6622
NSN 5960-00-855-7643
NSN 6650-00-647-1085
NSN 5905-00-838-7759
NSN 7035-01-471-2727
NSN 6130-01-308-7643
NSN 6220-01-474-7800
NSN 5950-01-558-7171
NSN 6150-01-469-9746
NSN 7035-00-295-0451
NSN 5835-01-347-8714