Shipping computer login code

 is a paper note in Fallout 3. It can be obtained from Milo, Shipping Foreman at the Nuka-Cola Plant, either through dialogue or from its corpse. With it, you can access the Nuka-Cola Shipping Terminal nearby.

Behind the scenes
The passcode for the shipping computer is the registry number of the USS Reliant in Star Trek II: The Wrath of Khan.