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 7035-01-013-9889
NSN 5998-00-397-4292
NSN 6220-00-113-8617
NSN 4140-01-381-3221
NSN 5996-01-614-6669
NSN 6105-01-302-0573
NSN 5945-00-996-1054
NSN 6130-01-414-3497
NSN 6150-01-158-6152
NSN 5930-00-826-9248
NSN 5920-01-263-9590
NSN 6320-01-442-3428