The S-3 design was the original DUO TIP electrode developed by Hughes Aircraft. This series is a double ended parallel gap electrode with an insulator (spacer) that binds the two halves together and establishes the width of the gap. The Hughes DUO TIP used pins and screws to bind the two halves together. This design uses an adhesive insulator which is a much more economical design that works very well. Custom materials are available. Contact the factory for assistance at (870)-269-4367.
Understanding AIT part numbers is very simple. Various dimensions on the drawing are represented by letters, which correspond to values in the part number. The beginning of the part number establishes the electrode series and material, followed by various dimensions. For example, part number S-3-M -A.007B.005C.012D.0015 is a molybdenum electrode with an A dimension of .007 . You can request a quote by filling in dimensions below in the custom part number and indicating the quantity you wish to have quoted in the comments section. Or you can request a quote for a standard part number in the list below by entering a quantity in the box next to the desired part number. Equivalent Hughes part numbers are listed below cross referenced to AIT part numbers.