O-ring, 79.5 X 3 mm – Buna, Part# 2120085 – vacstellar

Description

The Buna O-Ring 79.5 × 3 mm (Part No. 2120085) is a sealing component designed for Edwards rotary vane vacuum pumps. It is made from Buna-N (NBR) rubber, which provides strong resistance to oil and industrial fluids. This O-ring helps create a tight seal between pump components and prevents air or gas leakage. It is commonly used in Edwards E1/E2M vacuum pumps such as E2M28 and E2M30