1,744 pages on this wiki. Pompeii by Bastille is featured in The Untitled Rachel Berry Project, the twentieth and final episode of Season Five. It is sung by Artie, Blaine, Brittany, Kurt, Mercedes, Rachel, and Sam.,744 pages on this wiki. Pompeii by Bastille is featured in The Untitled Rachel Berry Project, the twentieth and final episode of Season Five. It is sung by Artie, Blaine, Brittany, Kurt, Mercedes, Rachel, and Sam.
Tip: Rubber O-ring. We get some inquiries from website viewers who are looking for a natural rubber o-ring so we thought we would publish a few words about what a rubber o-ring really is. It is virtually impossible to find an o-ring that is made from natural rubber - the stuff that comes from rubber trees - today. What you will find instead is a product that is made out of a synthetic material, called an elastomer, that looks, feels and behaves like one might think natural rubber would.
Basically, an O-ring seal is comprised of an elastomeric circular cross-section into a designed O-ring groove, providing an initial compression. The force required to compress an O-ring is a result of the durometer and cross-section diameter.O-ring stretch affects the seal compression by reducing the cross-section, which reduces the sealing potential of the O-ring. At zero or very low pressure, the natural resiliency of the rubber compound provides the seal.asically, an O-ring seal is comprised of an elastomeric circular cross-section into a designed O-ring groove, providing an initial compression. The force required to compress an O-ring is a result of the durometer and cross-section diameter.