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 5960-01-323-0024
NSN 5999-01-430-4379
NSN 6130-01-425-7313
NSN 5950-01-354-1448
NSN 5910-01-553-4137
NSN 5996-00-269-2655
NSN 5945-01-408-0699
NSN 6150-01-577-9443
NSN 5950-01-422-2924
NSN 5996-00-908-2949
NSN 5910-01-509-5388
NSN 5990-01-419-0661