Generic Buna-N O-Ring [4' ID] [3/16" CS] (O-171)

A Buna-N O-ring helps create a seal at a compatible large circular connection, and this generic version is sized with a 4 inch inside diameter and 3/16 inch cross-section using the O-171 reference. When a large-profile O-ring becomes flattened, brittle, or damaged, 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 to achieve the intended contact and compression. A properly selected O-ring helps support cleaner fit and contributes to more dependable sealing performance in the intended application.

This type of part is especially useful during service work where the original seal must be matched closely to restore proper fit around a larger circular groove. That keeps repairs accurate and dependable.

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

• Buna-N O-ring with 4 inch ID and 3/16 inch cross-section
• Helps support dependable sealing in larger compatible applications
• Useful when a heavier seal profile is required
• Supports cleaner targeted maintenance and repair
• Improves fit confidence and sealing reliability