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 5990-00-263-1289
NSN 5975-00-932-5591
NSN 5998-00-484-5487
NSN 6240-01-212-9535
NSN 5999-00-893-4748
NSN 4140-01-286-8123
NSN 5945-01-574-0977
NSN 6240-00-497-2176
NSN 5960-01-421-0887
NSN 5965-01-381-4879
NSN 5999-00-226-3488
NSN 5835-01-438-7899