Buna-N Back-Up Ring
SKU ORB278
$15.09
In stock: 5 available
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Buna-N Back-Up Ring
Product Details
Brand: Value Brand
Buna-N Back-Up Ring
The ORB278 Buna-N Back-Up Ring is a Buna-N (nitrile) back-up ring designed to support O-rings in high-pressure applications by helping prevent extrusion and improving seal stability. It’s the quiet sidekick that keeps your O-ring from trying to squeeze out of the job when pressure shows up.
Country of Origin
Varies by production batch
Key Features / Specifications
- Model / Part Number: ORB278
- Product Type: Back-up ring
- Material: Buna-N (nitrile)
- Function: Helps prevent O-ring extrusion and supports sealing in higher-pressure service
Ideal For
- Hydraulic and pneumatic systems where O-rings need added support under pressure
- Rebuilds and repairs where a worn or missing back-up ring is causing seal failure
- Applications where maintaining seal integrity matters more than mopping up later
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