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 5910-00-983-0022
NSN 5996-01-304-6110
NSN 5965-01-537-7731
NSN 6620-01-207-0667
NSN 5996-01-067-8716
NSN 5990-00-150-6979
NSN 6105-01-391-7500
NSN 5945-00-185-6609
NSN 5930-00-513-3307
NSN 5945-01-619-2943
NSN 6135-01-252-0315
NSN 5935-00-320-8844