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 7035-00-286-6221
NSN 6110-01-227-6851
NSN 7035-00-104-7613
NSN 5975-01-595-3022
NSN 6610-01-503-2951
NSN 7035-00-470-4977
NSN 5935-01-573-5803
NSN 7035-00-703-3535
NSN 5935-01-463-3326
NSN 7035-01-560-2623
NSN 6135-01-390-7364
NSN 5965-01-107-8549