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 4140-01-499-0572
NSN 5999-01-496-4067
NSN 5925-01-068-2887
NSN 5905-01-554-4916
NSN 4140-01-365-4221
NSN 5925-01-506-7833
NSN 6650-01-550-7828
NSN 5990-01-338-2103
NSN 5985-01-386-6490
NSN 6105-00-946-1075
NSN 5920-01-522-9747
NSN 5905-01-428-2502