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 5990-01-249-8212
NSN 6610-01-328-8098
NSN 6110-00-056-5378
NSN 6220-01-131-9997
NSN 6105-01-645-3066
NSN 6145-01-278-6903
NSN 5999-01-541-7400
NSN 6145-00-173-6646
NSN 6650-00-445-1427
NSN 6105-01-365-4660
NSN 5999-01-159-4170
NSN 6220-01-087-7755