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 5925-00-109-2218
NSN 5965-01-408-6218
NSN 6240-00-518-3541
NSN 5855-01-247-9666
NSN 2925-00-233-5644
NSN 5996-01-279-9841
NSN 5950-00-489-0914
NSN 4140-00-974-9994
NSN 6145-00-070-2385
NSN 6220-00-589-1148
NSN 6650-01-494-9956
NSN 5905-00-751-7225