Keysight 3458A Power Switch Rod, Guard Rod, Button

 This will fix the broken button and rod for a Keysight, Agilent, or HP 3458A. 

One rod works for power and front rear switches.  

The other is for the guard switch.

Make sure to press the button on the end before installing so you know it fits. It breaks it in so it will go on better after install.

There is a rod that has no end so buttonless it works but doesn't look as good

Not sure what the part costs but the flat rate repair is over $6K