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 5965-00-106-1612
NSN 5985-00-401-7230
NSN 6135-01-380-4396
NSN 5925-01-298-6328
NSN 5985-01-432-1715
NSN 5985-01-496-2089
NSN 5998-01-459-8580
NSN 5910-00-720-9991
NSN 5895-01-354-1470
NSN 6610-00-443-8910
NSN 6320-00-164-4087
NSN 5965-01-272-3480