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 4140-01-581-2051
NSN 5905-00-524-5794
NSN 5975-01-448-5372
NSN 6220-01-495-3301
NSN 5930-01-231-1219
NSN 6650-01-016-0406
NSN 4140-00-547-8918
NSN 5925-01-462-5933
NSN 6645-00-758-4567
NSN 5925-00-964-9654
NSN 5925-01-029-3483
NSN 5960-00-289-6591