Busch O-Ring, 32 x 3 mm – Viton Part# 486649

This is the Busch Viton O-Ring. The part number is 486649

This o-ring has a 32 mm inner diameter and a 3 mm cross-section. That means the rubber ring itself is 3 mm thick .

The inner diameter is 32 mm. That is about 1.25 inches. This is a mid-size o-ring, commonly used in many pump applications. The 3 mm thickness is a standard size that provides good sealing pressure.

Viton is a brand name for a type of synthetic rubber. The technical name is FKM (Fluoroelastomer). Viton is special because it can handle:

• High temperatures – Much hotter than standard rubber

• Harsh chemicals – Oils, fuels, acids, and solvents

• Vacuum pressure – It holds its shape even under strong vacuum

Standard rubber o-rings can swell, crack, or melt in these conditions. Viton keeps working .