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 5835-01-191-3405
NSN 6320-01-323-1947
NSN 5915-01-100-3887
NSN 5965-00-827-9680
NSN 5895-00-435-4734
NSN 5990-01-288-7393
NSN 5895-01-189-3372
NSN 6610-00-879-2788
NSN 6610-00-100-1195
NSN 7035-01-049-6776
NSN 5960-01-423-4240
NSN 5960-00-215-5884