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 5999-00-737-0503
NSN 7035-00-455-7666
NSN 5999-00-249-5989
NSN 5925-01-374-3112
NSN 6110-01-425-1449
NSN 5990-00-518-7525
NSN 4140-00-034-7482
NSN 6110-01-306-3478
NSN 5925-01-406-2879
NSN 6620-01-193-7774
NSN 6645-01-139-6473
NSN 6220-01-502-6030