$23.50
This is the spiral retaining ring for the Graco Fusion FX spray gun. Graco's service manual lists it as a spiral retaining ring and Graco's own listing ties it to the piston, so it is the part to order when a ring has been lost or deformed during a strip-down.
It is listed for the Fusion FX and supplied as a Graco kit. Retaining rings are easy to damage on removal and easy to lose on a job site, so it is sensible to have a replacement in hand before you take the piston apart, and to check the FX exploded diagram for the quantity your repair calls for.
Genuine Graco OEM part 2001167.
