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 6150-01-165-2089
NSN 4140-01-623-1421
NSN 5920-01-044-4158
NSN 5965-01-627-7972
NSN 6650-01-412-2959
NSN 5925-00-897-4821
NSN 6610-01-335-3185
NSN 6150-01-625-4866
NSN 6610-01-010-3159
NSN 5935-00-127-2482
NSN 6135-01-014-9755
NSN 4140-01-233-2479