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 5998-00-023-8968
NSN 7035-01-255-0334
NSN 5960-01-162-2304
NSN 5930-01-437-9081
NSN 6105-01-429-0232
NSN 5975-01-423-0255
NSN 6610-01-119-3048
NSN 6110-00-230-4509
NSN 5925-00-782-4742
NSN 4140-01-215-1125
NSN 5960-00-257-4203
NSN 6320-01-359-3921