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 6135-01-622-1296
NSN 7035-00-679-9027
NSN 5930-01-050-2632
NSN 5996-00-138-6888
NSN 2925-00-605-7838
NSN 5990-01-529-7307
NSN 5965-01-533-4851
NSN 5935-01-429-9011
NSN 5990-01-517-7848
NSN 7035-01-390-1132
NSN 5998-00-225-8522
NSN 5855-01-373-7538