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.)
NSN 5960-01-593-4760
NSN 5950-00-446-7812
NSN 6110-01-253-1359
NSN 5996-00-456-0895
NSN 5835-01-213-0833
NSN 5915-01-049-3198
NSN 5910-01-029-5884
NSN 5996-01-417-4246
NSN 6685-00-258-2257
NSN 6650-01-420-0233
NSN 5985-01-183-7180
NSN 5960-00-586-5292