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 6105-00-023-1760
NSN 7035-01-485-9723
NSN 5960-01-045-8524
NSN 5950-01-489-7054
NSN 5975-01-078-9040
NSN 6220-01-384-3879
NSN 6150-00-933-9803
NSN 6145-01-475-7762
NSN 5935-01-630-4447
NSN 7035-01-443-3052
NSN 6620-01-148-9071
NSN 6145-00-406-4471