Head markings indented at 120.0 degrees
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 5996-01-167-9234
NSN 5935-00-305-4873
NSN 6620-01-232-0680
NSN 5920-00-349-8837
NSN 6645-01-633-1852
NSN 6220-01-009-9177
NSN 6145-01-613-2981
NSN 5920-01-406-4154
NSN 5999-00-582-0354
NSN 5999-00-859-8349
NSN 5996-01-577-6509
NSN 6240-01-631-8680