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 6650-00-420-2640
NSN 5960-01-573-6483
NSN 6610-01-422-2376
NSN 5998-01-514-0376
NSN 6145-01-495-1410
NSN 5905-01-334-4636
NSN 6610-00-506-1977
NSN 5999-00-666-3838
NSN 4140-01-337-0495
NSN 6685-00-325-3265
NSN 6130-01-627-2487
NSN 5985-00-883-9092