Nut prest pk 12 991 De Dietrich 95890350

A prest nut, size PK 12, model 991, used in specific boiler or burner applications. This type of nut often features a unique design for secure fastening in heating equipment components. It is a specialized spare part for boiler maintenance and repair, ensuring proper assembly of gas burner parts or other systems where a prest nut is required. Its precise dimensions make it suitable for replacement in compatible equipment.