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 5895-00-950-8839
NSN 5915-01-410-7822
NSN 5905-00-204-0469
NSN 6645-01-111-1144
NSN 5905-01-518-3922
NSN 5925-01-050-9032
NSN 6240-01-417-3656
NSN 5905-00-149-0677
NSN 5920-01-141-5706
NSN 5915-00-248-5824
NSN 5905-00-446-2772
NSN 6220-00-400-5428