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 5965-01-629-5800
NSN 4140-01-186-0463
NSN 5999-01-150-6726
NSN 5895-01-579-0734
NSN 4140-01-259-1392
NSN 6220-00-717-5099
NSN 5930-01-451-9385
NSN 6135-01-335-9184
NSN 5920-00-925-2639
NSN 5835-01-189-6095
NSN 6240-01-584-1829
NSN 5895-01-168-2733