Color black
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 5960-00-409-3221
NSN 4140-00-499-8216
NSN 2925-01-331-5039
NSN 5835-01-068-4214
NSN 6650-00-372-0669
NSN 5905-01-373-3835
NSN 6105-01-292-7872
NSN 5855-01-406-7237
NSN 6105-01-493-8690
NSN 6220-01-445-6575
NSN 6145-00-719-7395
NSN 6135-01-357-0621