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 4140-00-434-5001
NSN 5985-00-647-1163
NSN 7035-01-243-2730
NSN 5998-01-199-3959
NSN 6645-00-935-7046
NSN 5996-01-457-0335
NSN 6150-01-431-4344
NSN 5930-00-951-0877
NSN 5998-01-641-0812
NSN 7035-00-360-2008
NSN 5950-00-466-2837
NSN 2925-01-143-4229