$6.85
This is a compression spring for the Graco Fusion AP spray gun. Graco's service manual lists it as a spring, the exploded parts diagram labels it "Spring", and the Graco Partner Portal lists it as a compression spring.
A spring that has taken a set, lost tension or picked up corrosion will change how the gun feels and behaves. If you already have the gun apart, that is the right moment to look at it rather than closing everything up and revisiting the job a fortnight later.
The Fusion range uses more than one spring, so match the part number to the position on your Graco diagram. Genuine Graco OEM part 117491.
