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 5895-00-061-0344
NSN 5910-00-316-3537
NSN 6105-01-285-3015
NSN 5998-00-702-2954
NSN 5915-01-359-0923
NSN 5965-00-539-7778
NSN 6685-00-613-3785
NSN 5920-01-212-9908
NSN 5925-01-507-2469
NSN 5985-00-205-9568
NSN 6650-00-948-3647
NSN 5930-00-847-4596