What term describes material ordered from sources external to the ship?

The term that describes material ordered from sources external to the ship is known as Direct Turn Over. This term specifically indicates the process where materials needed for operations come from outside the vessel, as opposed to items that are stored onboard or sourced internally.

In naval logistics, "Direct Turn Over" encompasses the efficient transfer and acquisition of supplies that the ship requires to maintain its operational readiness. Understanding this term is crucial for logistics specialists as it affects how inventory, supply chains, and support operations are managed during deployments and missions. Each of these terms has a specific context in logistics, but "Direct Turn Over" precisely captures the essence of acquiring external materials necessary for the ship's functioning.

The other options, while relevant in broader supply contexts, do not specifically capture the concept of sourcing material from outside the ship in the same clear manner as "Direct Turn Over."