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 6130-01-258-8966
NSN 6145-00-970-8046
NSN 7035-00-111-4389
NSN 5895-00-895-4446
NSN 6145-00-868-8763
NSN 5915-01-282-0529
NSN 5985-01-581-4531
NSN 6240-00-635-6069
NSN 4140-00-240-1836
NSN 2925-01-037-5383
NSN 5910-00-943-2701
NSN 6610-01-227-1692