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.)
Classification: Nuts of iron or steel
NSN 6610-01-144-8401
NSN 6130-00-440-9057
NSN 6105-01-303-5856
NSN 5950-00-529-0599
NSN 6240-01-008-2935
NSN 5998-00-121-9827
NSN 6220-00-816-8131
NSN 6130-00-404-1745
NSN 5960-01-640-9971
NSN 6650-00-884-8228
NSN 5910-01-333-7285
NSN 5965-01-630-0409