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 6220-00-312-2007
NSN 5985-00-932-4257
NSN 6110-01-595-6928
NSN 6145-01-032-6116
NSN 5960-01-100-6746
NSN 5895-01-227-1603
NSN 5998-01-023-8481
NSN 7035-01-654-6660
NSN 5935-01-612-6265
NSN
NSN 5930-01-514-6541
NSN 5990-01-233-9214