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 4140-00-483-1932
NSN 5925-01-192-8890
NSN 6650-01-549-8478
NSN 5855-00-928-1912
NSN 5960-00-871-3950
NSN 6320-01-237-9746
NSN 5985-01-377-1414
NSN 5990-01-248-0108
NSN 6110-01-482-4986
NSN 5999-01-377-5844
NSN 6240-01-236-9330
NSN 6650-01-506-5636