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.
The O-ring is one of the simplest, most common types of seal for a wide range of static and dynamic applications. The design of the O-ring groove is relatively straightforward -- by following well-developed rules for groove geometry, an economical and reliable seal is obtained. The tendency of the O-ring to return to its original shape when the cross-section is compressed is the basic reason an O-ring makes an excellent seal.