Generic O-Ring [18-5/16" ID] [7/16" CS] O-430 (O-430)

An O-ring helps create a dependable seal at a compatible extra-large circular connection, and this generic version is sized with an 18-5/16 inch inside diameter and 7/16 inch cross-section using the O-430 reference. When a very heavy-profile O-ring becomes brittle, compressed, or damaged, 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 some extra-large assemblies require significantly more sealing material than standard profiles can provide. A properly selected O-ring helps support cleaner groove fill and contributes to more dependable sealing performance where a substantial section is essential.

This type of part is especially useful during major overhaul or service work where very large seal dimensions must be matched closely for reliable reassembly. That helps keep repairs more precise 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 18-5/16 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