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 6220-01-191-7643
NSN 4140-01-502-7831
NSN 5920-01-397-8380
NSN 6220-01-449-2014
NSN 6645-01-151-8009
NSN 6645-00-399-4551
NSN 5925-01-192-1452
NSN 6135-01-069-2482
NSN 5925-01-512-8126
NSN 5930-00-159-1525
NSN 4140-00-580-8508
NSN 5935-01-044-5677