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 5945-00-657-6388
NSN 5975-01-540-4323
NSN 5990-01-647-8574
NSN 5915-01-357-5581
NSN 6650-00-031-8467
NSN 5985-01-059-8609
NSN 5985-01-532-4368
NSN 5998-01-270-6349
NSN 5910-01-107-0835
NSN 6240-01-128-2476
NSN 5999-01-287-8519
NSN 6650-01-328-8363