DISASTER KIT: 14-Item List from U.S. Government
After an emergency, you may need to survive on your own for several days. Being prepared means having your own food, water and other supplies to last for several days. A disaster supplies kit is a collection of basic items your household may need in the event of an emergency.
That's a quote from the below website which outlines the official basic disaster supplies kit.
U.S. Government Ready Kit List:
https://www.ready.gov/kit