Generic O-Ring [31-5/16" ID] 7/16" CS] (O-491)

An O-ring helps create a dependable seal at a compatible extra-large circular connection, and this generic version is sized with a 31-5/16 inch inside diameter and 7/16 inch cross-section using the O-491 reference. When a very large heavy-profile O-ring becomes brittle, cut, or compressed, the assembly can lose the sealing support it should maintain across the full connection.

The 7/16 inch cross-section gives this O-ring practical value because extra-large sealing surfaces often require significantly more material than standard profiles can provide. A properly selected O-ring helps support cleaner groove fill and contributes to more dependable sealing performance where substantial sealing mass is essential.

This type of part is especially useful during major overhaul or tank-style assembly service where exact large-seal replacement is important to reliable operation. That makes repair work more accurate and more dependable.

Installed in the proper application, this O-ring helps support dependable sealing and contributes to cleaner overall system integrity.

• O-ring with 31-5/16 inch ID and 7/16 inch cross-section
• Helps support dependable sealing in extra-large applications
• Useful when substantial groove fill is required
• Supports cleaner targeted maintenance and repair
• Improves fit confidence and sealing reliability