X3-51

X3-51 is a character mentioned in Fallout 4.

Background
X3-51 is a synth courser working for The Institute in 2287. They were tasked to retrieve K8-23, a runaway synth. Instead, they found their lifeless carcass near the Saugus Ironworks, which one could assume they were shot to death by the residing Forged.

Appearances
is mentioned only in Fallout 4.