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 5960-01-299-5832
NSN 6610-01-047-4466
NSN 6150-00-371-4620
NSN 5975-01-426-7375
NSN 5835-01-557-4914
NSN 5935-01-136-0748
NSN 5920-01-538-7374
NSN 6145-00-729-3702
NSN 2925-01-534-7314
NSN 5935-00-958-9905
NSN 6110-01-276-4244
NSN 6145-01-436-6241