O-ring, 27 x 2.5 mm – Viton, Part# PL23970436 – vacstellar

Description

This O-ring might be small, but it has a very important job. It sits in a groove between two parts, pressing tightly to create a perfect seal that keeps air out and vacuum in.

This seal is special because it’s made from Viton (FKM). Think of Viton as a super-material for seals. It doesn’t give up when things get hot or when it touches oils, fuels, or many chemicals. Ordinary rubber seals can fail in these conditions, but Viton stays strong.

That’s why it’s the top choice for sealing vacuum pumps, fittings, and chambers in labs, factories, and research facilities. Using this O-ring means fewer leaks, better performance, and less worry about maintenance.

This is the official Part# PL23970436. Its inner diameter is 27 mm and it has a 2.5 mm thick cross-section. You can trust it to fit right and work right in your equipment.