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 6220-00-189-6561
NSN 5985-00-100-0140
NSN 5998-00-079-0410
NSN 6320-01-466-4175
NSN 5895-01-196-9472
NSN 5925-00-825-1411
NSN 6240-01-633-6350
NSN 5935-01-139-3387
NSN 6650-01-445-6492
NSN 5910-01-322-9065
NSN 6135-01-329-7994
NSN 5965-00-932-4591