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 2925-00-829-9082
NSN 5920-01-659-1034
NSN 6645-00-724-7668
NSN 5996-00-399-0731
NSN 5996-00-001-8430
NSN 5930-01-391-9730
NSN 5975-00-900-4013
NSN 5985-00-228-6296
NSN 5915-01-246-3380
NSN 5998-00-509-2847
NSN 5905-01-154-9182
NSN 5975-01-340-9271