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 6220-01-158-5956
NSN 4140-01-293-2112
NSN 5945-01-475-4695
NSN 6320-01-608-1935
NSN 6150-01-371-2446
NSN 5996-01-425-1455
NSN 5990-01-462-1617
NSN 5999-00-854-9931
NSN 2925-01-037-5383
NSN 5996-00-456-0895
NSN 6110-01-096-4956
NSN 5835-00-770-2843