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 4140-00-707-5963
NSN 5895-01-134-5330
NSN 5960-01-412-0619
NSN 6650-01-442-0267
NSN 6220-01-166-9219
NSN 6240-01-352-3642
NSN 5998-01-336-1746
NSN 5945-00-172-8343
NSN 5996-01-455-2198
NSN 4140-00-170-5152
NSN 6110-01-065-5791
NSN 4140-01-373-7044