An electromagnetically actuatable valve, e.g., a fuel injector for fuel injection systems, includes an electromagnetic actuating element having a solenoid, a fixed core, a valve jacket, and a movable armature for actuating a valve closing body, which cooperates with a valve seat surface provided on a valve seat body. In addition, the valve has a restoring spring for resetting the valve closing body to its resting position on the valve seat surface. The restoring spring and an internal longitudinal bore hole of the armature are paired in such a way that the armature is guided during its axial movement only along the restoring spring.