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 5835-01-118-4690
NSN 5996-01-032-5926
NSN 6320-00-790-4844
NSN 5855-01-365-4287
NSN 5910-00-408-4406
NSN 6150-01-242-9898
NSN 6145-01-217-3925
NSN 5965-01-106-1431
NSN 5996-01-284-7758
NSN 5915-01-164-0315
NSN 5855-01-359-5727
NSN 5996-01-378-5175