Rocket POM Ball Bearing Piston Head

These Rocket piston heads are made from POM. These is a solid threaded head so are very light but shouldn't be overtightened of the threads can strip. It is highly recommend you use some thread locker on any piston head screw as it is common for them to come loose over time. The O-rings in these are of good quality with very clean seams. A good seam is very important to a consistent seal in with a piston head.

Specifications:
Material: POM
Thrust bearing: Yes
Backer washer material: Aluminum
Mass w/bearing: 8.99grams
Mass w/o bearing: 5.33grams
Thickness: 0.308 in (7.83mm)