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 6650-01-657-3933
NSN 5915-01-573-3925
NSN 5945-01-194-7541
NSN 6645-01-622-1830
NSN 6685-00-319-3497
NSN 5945-00-149-1857
NSN 6610-01-535-4230
NSN 5985-00-361-8863
NSN 6620-01-261-2354
NSN 5935-00-256-5677
NSN 5998-01-327-2995
NSN 5960-01-412-0619