Generic Buna-N O-Ring [4-3/8" ID] [3/16" CS] (O-230)

A Buna-N O-ring helps create a dependable seal at a compatible large circular connection, and this generic version is sized with a 4-3/8 inch inside diameter and 3/16 inch cross-section using the O-230 reference. When a thicker-profile O-ring becomes worn or flattened, the assembly can lose the sealing support it should maintain.

The 3/16 inch cross-section gives this O-ring practical value because larger sealing points often require a more substantial profile than thinner sections can provide. A properly selected O-ring helps support cleaner fit and contributes to more dependable sealing performance where a heavier section is specified.

This type of part is especially useful when replacing an original larger seal where both inside diameter and cross-section need to be matched accurately. That keeps repairs more precise and more reliable.

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

• Buna-N O-ring with 4-3/8 inch ID and 3/16 inch cross-section
• Helps support dependable sealing where a thicker profile is required
• Useful when exact O-ring profile matching matters
• Supports cleaner targeted maintenance and repair
• Improves fit confidence and sealing reliability