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 5996-01-622-7636
NSN 5935-00-573-9473
NSN 6135-00-575-8942
NSN 5910-01-114-0539
NSN 5935-01-062-8027
NSN 5905-01-391-4983
NSN 5965-01-626-5775
NSN 5975-01-244-4510
NSN 5960-01-125-2356
NSN 5915-01-228-8934
NSN 6610-00-497-3801
NSN 5975-01-181-4459