how do I call a function from another script, when Raycast Hits?

Hello, just wondering if somebody can point me in the right direction.

I have this C# Script:

public class Raycasty : MonoBehaviour {

 public float InteractDistance = 30;

 //public DisappearScript disappearScript;



 public void Update ()
 {

     Ray ray = new Ray (Camera.main.transform.position, Camera.main.transform.forward);
     RaycastHit hit;

     if (Physics.Raycast(ray, out hit, InteractDistance)) 
     {
         Debug.DrawLine(Camera.main.transform.position, transform.position + transform.forward * InteractDistance, Color.green);

         if (Input.GetButtonDown ("click")) 
         {
             if (hit.collider.tag == "Cube")         
             {
                 Destroy (hit.collider.gameObject);

                 //disappearScript.GetComponent<DisappearScript>().Disappear();
             }
         }

     }    
 }

}

This script works as expected. But, instead of : Destroy (hit.collider.gameObject); I want to call a "Disappear" function from another script. (commented out lines)

What am I doing wrong?

Any help is really appreciated, Thanks in advance!