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 5930-01-364-0798
NSN 5950-01-582-4033
NSN 6645-01-123-9277
NSN 5925-00-186-8669
NSN 5998-01-302-3387
NSN 5895-00-832-9351
NSN 5998-01-529-4741
NSN 5925-01-607-2091
NSN 4140-01-528-8156
NSN 6620-00-760-4332
NSN 5915-00-162-5942
NSN 6130-01-365-8017