Quest item

Quest items are items that have the main purpose of being used for completing a quest.

Gameplay
"Quest item" is also a specific property (or "flag" in programming terms) of an item. An item with this flag cannot be dropped, sold or stored in containers. Weapons and armor that bear a quest item flag are also not repairable by merchants, but are repairable through the Pip-Boy.

The purpose of this setting is to prevent the player character from rendering quests incompletable by selling or dropping items which are required for its completion. The console command can be used to clear the quest flag from items.

By Game

 * Fallout quest items
 * Fallout 2 quest items
 * Fallout Tactics quest items
 * Fallout: Brotherhood of Steel quest items
 * Fallout 3 quest items
 * Fallout: New Vegas quest items
 * Fallout 4 quest items
 * Fallout 76 quest items