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 6220-01-223-8233
NSN 6110-01-413-6996
NSN 5990-01-465-9235
NSN 5960-01-200-4621
NSN 5999-00-905-6936
NSN 5998-00-141-2489
NSN 6135-01-124-2376
NSN 6135-01-056-4609
NSN 6650-01-645-2850
NSN 5895-00-737-4831
NSN 6220-01-036-3278
NSN 5895-01-535-7274