Industrial P2-640-B Expansion Seal Assembly is a Pop-A-Plug II expansion seal identified by part number P2-640-B and sized at 0.640 inches. The 0.640 in. dimension defines the expansion size and the sealing interface for compatible industrial components. As part of the Pop-A-Plug II family, the P2-640-B provides a precise sealing option where a 0.640 inch expansion seal is required.
