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 6105-01-026-4749
NSN 7035-01-429-0431
NSN 6130-00-863-3588
NSN 5905-01-381-5519
NSN 6240-00-319-4549
NSN 5835-00-723-2505
NSN 5965-00-079-0928
NSN 5965-00-829-6884
NSN 6320-01-519-8767
NSN 5999-00-419-3877
NSN 5960-01-024-0578
NSN 5930-00-528-5252