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 5950-00-917-8434
NSN 7035-01-069-3537
NSN 5915-00-871-6520
NSN 6105-01-607-4306
NSN 6645-01-322-0697
NSN 6650-00-252-6271
NSN 5945-01-265-1763
NSN 7035-01-391-7470
NSN 5960-01-425-1454
NSN 5835-00-883-8182
NSN 7035-01-104-4349
NSN 5999-00-212-7853