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 5920-00-372-5864
NSN 6105-00-771-0893
NSN 6220-01-093-0928
NSN 7035-00-991-6877
NSN 6620-00-389-8442
NSN 5855-01-565-7447
NSN 5985-00-904-9052
NSN 6130-00-558-0453
NSN 5835-00-275-0584
NSN 5935-01-644-0123
NSN 6150-01-128-2860
NSN 6145-00-462-2364