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 5996-00-089-0895
NSN 6150-01-254-2764
NSN 5996-01-020-4484
NSN 5905-00-208-0937
NSN 6135-01-222-0703
NSN 5999-01-398-1242
NSN 5835-00-289-9080
NSN 5930-01-570-3405
NSN 5915-01-094-7847
NSN 5985-01-445-2334
NSN 5895-00-230-1820
NSN 5895-01-254-0806