A bead gasket, also known as a bead seal, is a type of gasket used to seal two surfaces together. It is typically made of a flexible material, such as rubber or silicone, and has a raised, or "beaded," edge along its perimeter. The bead helps to create a tight seal by pressing against the surfaces being joined, preventing leakage.

The VC3X designation refers to a specific type or model of bead gasket.