O-Rings & Backup Rings
Aerospace, Defense, Energy, Industrial, Semiconductor

PRODUCT DESCRIPTION
Optimize Uptime
When it comes to critical applications, uptime is non-negotiable. That is why Greene Tweed's O-rings provide cost-effective, flexible sealing solutions for industry’s harshest conditions. The O-ring can be used either as a seal itself or as the energizing element in PTFE, cap-type seals.
If you are looking for backup rings, Greene Tweed’s engineers will work with you to develop a custom designed backup ring configuration suited to your needs.

Features and Benefits
- Low cost
- Extended service life, reduced overall maintenance
- Easy installation
- Simplified shape
- Mechanical, thermal, and chemical resistance properties
Industries & Applications:

Sealing Solutions that Do Not Quit
When equipment failure is not an option, industries rely on Greene Tweed’s selection of custom-engineered O-rings and backup rings. We can help you find the right O-ring for your specific application, whether you need heat-resistant materials that perform at high temperatures or chemical-resistant compounds that withstand aggressive fluids. No matter how demanding the environment, our team will help you determine the right seal solution.
Applications include:
- Aircraft engines, brakes, and controls
- Semiconductor chamber seals
- Fuel controls, pumps, and valves
- Hydraulic systems, oxygen systems, and cryo coolers
- APUs (Auxiliary Power Units)

Versatile Sealing Performance
Chemraz® is the prime choice for the most challenging semiconductor, energy, industrial, pharmaceutical, and aerospace and defense applications.
For harsher environments, Greene Tweed’s Fiber Optic Extreme solutions provide an optical connection system that protects data transmission under extreme pressures and temperatures.
Built for the Harshest Conditions
Do you need an O-ring that can handle even the most extreme industrial environments? Meet Chemraz®, our highest-performing elastomer and the ultimate elastomeric material.
