O-ring 52.39x3.53 De Dietrich 7705916

The O-ring 52.39x3.53 is a precision sealing ring used in various boiler and burner applications. With an inner diameter of approximately 52.39mm and a cross-section of 3.53mm, it fits many gas valve fittings and hydraulic connections. This O-ring ensures leak-free performance in heating equipment components, making it a common spare part for maintenance. Replace aged or damaged O-rings to prevent leaks and maintain reliable operation of your system.