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 6220-00-354-8287
NSN 6130-00-639-0666
NSN 6130-01-478-5872
NSN 5925-01-534-4866
NSN 6220-01-340-1578
NSN 6240-01-442-7746
NSN 6220-01-301-5411
NSN 6650-01-531-2439
NSN 6145-00-078-9917
NSN 5945-01-547-0678
NSN 5999-01-517-8314
NSN 5920-01-025-2725