O-ring, 78.74 x 5 mm – Viton, Part# 706191 – vacstellar

Description

Rietschle VC400, VC500, and VC700 are big rotary vane pumps that run hard in factories and heavy workshops. They get warm inside from long hours of work, and oil helps everything move smooth. This Viton O-ring, part number 706191 , fits in spots where a reliable seal is needed to hold oil and keep air where it belongs.

It is made from Viton – a special black rubber that stands up to high heat, oil, and chemicals much better than regular rubber. It does not crack, swell, or break down even after the pump has been running hot for days. The size is 78.74 mm across the inside and 5 mm thick. It slides into a groove, gets squeezed when parts bolt together, and creates a tight, leak-proof seal.