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 6110-01-023-2248
NSN 6150-01-648-7364
NSN 5910-01-579-8578
NSN 6650-01-412-1040
NSN 6685-00-866-4596
NSN 6110-01-433-6211
NSN 5895-01-056-1735
NSN 6650-01-370-3919
NSN 5975-00-489-1413
NSN 5999-00-988-6652
NSN 5930-00-131-6969
NSN 6105-00-923-2531