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 6320-01-512-2031
NSN 5910-00-156-0993
NSN 5950-01-078-6497
NSN 6645-01-446-5419
NSN 6610-00-343-5631
NSN 5960-01-495-0859
NSN 6130-00-123-7959
NSN 6240-00-467-6099
NSN 6650-01-483-0308
NSN 4140-00-900-6102
NSN 6135-01-101-5039
NSN 5998-00-825-2691