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 5835-00-233-6327
NSN 5985-00-841-1735
NSN 5895-00-390-7806
NSN 5835-00-890-3932
NSN 5985-01-023-8011
NSN 6320-00-098-2858
NSN 5999-00-795-4781
NSN 5935-00-371-5365
NSN 5895-01-451-4547
NSN 6610-00-451-8840
NSN 6645-00-137-7699
NSN 5910-01-601-3860