The Kramp 3698500 is a genuine tension spring crafted from durable spring steel with a zinc-plated finish for enhanced corrosion resistance. It features a 0.5 mm wire diameter, 5 mm outer diameter, and a 30 mm free length. Designed with German eyes in an axial position, it has an eye opening of 1.5 mm, eye length of 15 mm, and eye diameter of 2.5 mm. With 15 coils and a spring rate of 0.07 N/mm, it can handle a maximum load of 2.1 N and a maximum deflection of 30 mm, ensuring reliable performance in various applications.