The AS568-347 PTFE White Spiral Backup from Freudenberg-NOK features a 4-1/4" inner diameter and a 4-5/8" outer diameter, with a thickness of 3/16". This backup ring is specifically designed to improve sealing performance in dynamic applications, providing exceptional resistance to chemicals and high temperatures. Made from high-quality PTFE, it ensures durability and reliability in various industrial environments. The spiral design allows for easy installation and optimal sealing under pressure, making it ideal for hydraulic and pneumatic systems.
