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 6320-00-228-5678
NSN 6240-01-556-0650
NSN 5935-01-119-8465
NSN 6130-01-595-6760
NSN 6645-01-423-9361
NSN 6650-01-227-1632
NSN 5998-00-951-0789
NSN 5915-01-106-3511
NSN 5998-00-144-8211
NSN 6135-00-896-3187
NSN 6135-00-756-6149
NSN 6645-01-063-0714