Wagner 0501515 or 501515 Reversible 515 Spray Tip
Tip does not have a 515 but an "M" imprinted on handle (see photo).
These are high quality Wagner OEM consumer tips.
Comes with Seals.
Refer to your manual for detailed information.
From the Manufacturer:
The reversible spray tip is ideal for use with oils, paints, stains, interior and exterior latex paints, extior oil primers, latex and oil enamels and waterborne clear coats. Reversible to allow the user to quickly shoot out any blockage that occure. A reversible spray tip atomizes the material you are spraying. Three numbers are used to designate tip size. The first digit, multiplied by two, represents the width of the pattern. The next two digits refer to the orifice size in thousandths of an inch. Average life of a reversible tip is 40 to 60 gallons.
Prop 65 Warning!
This product can expose you to chemicals which are known to the State of California to cause cancer.