O-ring 12, 42X1, 78 Nbr De Dietrich JJJ005405300

The O-ring 12,42X1,78 Nbr is a precision sealing component made from nitrile rubber (NBR), known for its excellent resistance to oils, fuels, and common heating system fluids. With dimensions of 12.42 mm inner diameter and 1.78 mm cross-section, it provides a reliable seal in various boiler and burner assemblies. This o-ring is essential for preventing leaks in gas valves, pumps, and other connections, contributing to the safe and efficient operation of your heating equipment.