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 6650-00-891-9850
NSN 6220-00-475-0217
NSN 4140-00-128-8072
NSN 5965-01-178-7853
NSN 5915-00-661-2223
NSN 5930-01-605-7969
NSN 5920-00-551-1314
NSN 6320-01-431-4359
NSN 5895-01-384-6096
NSN 5998-00-173-4691
NSN 6620-01-313-3755
NSN 6610-01-247-6374