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 6110-01-473-9550
NSN 6220-01-123-1353
NSN 5960-01-119-1288
NSN 5965-01-613-0932
NSN 5990-01-497-2138
NSN 6650-00-272-2271
NSN 6145-01-193-4568
NSN 5925-01-629-7248
NSN 4140-00-953-9335
NSN 5920-01-534-2459
NSN 6650-01-470-1315
NSN 6240-00-497-8612