NX-42 guidance chip

The NX-42 guidance action is a junk/quest item in Fallout 4.

Characteristics
During Last Voyage of the U.S.S. Constitution, Mr. Navigator will ask for it as the first item that is needed to repair the U.S.S. Constitution.

Locations
The chip is located at the Charlestown scavenger camp within a file cabinet on the first floor. It must be stolen; otherwise, it will be given to the Sole Survivor, if they agree to help the scavengers.

Related quest

 * Last Voyage of the U.S.S. Constitution