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 6110-01-029-3403
NSN 6150-01-445-5366
NSN 6645-01-289-0376
NSN 5999-00-713-9090
NSN 6110-01-362-1348
NSN 5990-00-556-9851
NSN 6110-00-693-6078
NSN 6135-01-319-5567
NSN 5925-00-103-1050
NSN 5895-01-327-6304
NSN 5985-01-425-9690
NSN 5960-01-244-2835