Washer din 6798a m6 De Dietrich 7774069

The washer din 6798a m6 is a serrated lock washer designed to prevent loosening in boiler and burner assemblies. Its toothed profile bites into the mating surface, ensuring a secure hold under vibration. Commonly used in heating equipment components, this washer is essential for reliable fastening in gas burner parts or boiler maintenance. Adding this washer to your spare parts kit helps maintain tight connections.