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 6145-01-247-9818
NSN 5920-00-189-4657
NSN 7035-01-013-9889
NSN 5960-00-605-9192
NSN 5915-01-074-3387
NSN 5930-00-566-0972
NSN 5960-00-188-8648
NSN 2925-00-631-0548
NSN 6240-01-078-9490
NSN 5996-01-158-0086
NSN 5835-00-003-0295
NSN 6610-01-591-3041