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 5975-00-857-2791
NSN 5930-00-476-8194
NSN 6220-00-056-1569
NSN 5999-01-392-3805
NSN 6240-01-632-6885
NSN 5915-01-469-6831
NSN 6145-01-258-4524
NSN 2925-01-254-3068
NSN 7035-00-104-7613
NSN 5999-00-822-2498
NSN 6150-00-980-9243
NSN 5930-01-611-3968