$5.05
This o-ring is used on the Graco Fusion FX spray gun. It appears on Graco's exploded parts diagram as an o-ring and is supplied as a single ring, which makes it straightforward to order only what your service actually needs.
O-rings are inexpensive and they are the first thing to change while a gun is open, because getting back inside later to chase a weep costs far more in downtime than the seal does.
Identify the one you need by its position on the Graco diagram and order by part number rather than by sight, since seals of similar size are hard to separate once they are out of the gun. Genuine Graco OEM part 119421.
