O-ring, 8.2 x 2.4 mm – Viton, Part# 320160 – vacstellar

It’s made from Viton (FKM), a top-grade material for tough jobs. Viton stands up to pump oil, grease, and the heat generated during operation much better than standard rubber. 

This specific part (Part# 320160) is designed as a replacement for several pump models. It fits the Leybold Trivac D2.5E, D5E, D10E, and D16E. These small O-rings are often used in places like shaft seals, valve assemblies, or small cover plates.

During pump maintenance, it’s common to find several of these small O-rings. Replacing them with fresh, Viton rings ensures every potential leak point is sealed tight. It’s a simple step that makes a big difference in restoring your pump’s reliability.