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 5996-00-133-3538
NSN 6240-01-092-6678
NSN 6620-01-547-9766
NSN 7035-01-266-3490
NSN 5855-01-031-4729
NSN 2925-00-435-5604
NSN 5999-01-593-5398
NSN 5855-01-037-7342
NSN 5915-01-130-5941
NSN 4140-00-555-2579
NSN 5835-01-561-2959
NSN 5895-01-542-0374