Generic Quad Ring 6-1/8" ID] [6-5/8" OD] (O-389)

A quad ring helps create a multi-lobed seal at a compatible circular connection, and this generic version is sized with a 6-1/8 inch inside diameter and 6-5/8 inch outside diameter using the O-389 reference. When a profile-specific seal becomes worn, flattened, or damaged, the assembly can lose the sealing support it should maintain.

The quad-ring profile gives this part practical value because some groove designs are intended for a multi-lobed seal rather than a standard round O-ring. A properly selected quad ring helps support cleaner seating and contributes to more dependable sealing performance where that original profile is specified.

This type of part is especially useful during rebuild or maintenance work where the seal shape must be matched closely and a standard O-ring is not the intended replacement. That keeps the repair more exact and more dependable.

Installed in the proper application, this quad ring helps support dependable sealing and contributes to cleaner overall assembly integrity.

• Quad ring with 6-1/8 inch ID and 6-5/8 inch OD
• Helps support dependable sealing in profile-specific applications
• Useful when a quad-ring replacement is required
• Supports cleaner targeted maintenance and repair
• Improves fit confidence and sealing reliability