17421 Reduces vibration and mechanical stress

Reduces vibration and mechanical stress on high-pressure fittings

Compatible with a wide range of high-pressure applications for flexible and reliable operation

Designed for 3/4" tube O

Restores sealing efficiency and pressure integrity

17421 Reduces vibration and mechanical stressDescription Back Up Ring 17421 is manufactured from PTFE (Teflon) to provide superior anti extrusion support in high pressure hydraulic systems. Its low friction properties enhance dynamic sealing performance while maintaining chemical and temperature resistance. Designed to reinforce primary O rings, it prevents deformation and extends seal life under fluctuating pressure conditions. Ideal for pumps, valves, and pressure control assemblies, this