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 5999-00-536-3311
NSN 7035-01-024-4332
NSN 5985-00-231-3759
NSN 6650-01-181-6037
NSN 5960-01-632-6576
NSN 5935-01-060-0079
NSN 6650-01-654-6257
NSN 5835-01-515-5860
NSN 7035-01-443-3052
NSN 5925-00-274-0130
NSN 6130-01-368-4889
NSN 5999-01-385-3317