Hey, if you're fixing a Porter-Cable nailer, this is the genuine OEM piston stop, part number 904685. It's specifically designed to fit the Porter-Cable FN250B Type 1 and FN251 Type 1 nailers. This little part is crucial—it helps control the piston movement inside the tool. If your nailer is misfiring, not driving nails properly, or making weird noises, a worn stop could be the issue. This is the exact original part, so you know it'll fit and work right. Installation requires some know-how; you'll need to open up your nailer, replace the old stop, and reassemble. If you're not comfortable with tool repair, it's best to have a pro do it. But if you're handy and have the right tools, this part can get your nailer back in action. Always double-check your nailer's model and type before ordering. A simple, essential replacement to keep your Porter-Cable tool running smoothly. No frills, just the right part for the job.
