O-ring, 38 x 3 mm – Viton, Part# 23963115 – vacstellar

Description

This O-ring is the key to achieving that. While it’s listed for Pfeiffer vacuum systems, its standard size and superior material make it useful for many applications.

An O-ring is a simple but brilliant invention. It’s a donut-shaped seal that sits in a groove between two parts. When those parts are tightened, the O-ring compresses. This compression fills the gap completely, creating a tight barrier that prevents air or fluids from leaking.