Lieutenant's hat

The lieutenant's hat is a piece of armor in Fallout 4.

Locations

 * The lieutenant's hat is a reward given to the player by Captain Ironsides when returning to the USS Constitution's new location after its take-off with one's promotion to the rank of "honorary lieutenant".
 * This hat can also be found outside the Custom House Tower when telling Dogmeat to fetch any items. He will run to mannequin display windows and pull out random hats. Using the console command to clip through the ground reveals no hidden items.