Who is typically responsible for managing the grand master key in the supply department?

In the context of Navy logistics, the role of managing the grand master key within the supply department is typically assigned to the Supply Officer, often referred to as "Suppo." The Supply Officer is responsible for overseeing all supply operations, including the management of secure items, which encompass the grand master key that provides access to various secure spaces and materials. This responsibility includes ensuring that proper accountability and security measures are in place, as the grand master key is critical for maintaining the security of supplies and equipment.

The other groups (I, II, III, IV) listed are generally organized around specific functions or warehousing responsibilities within the supply department, but they do not carry the overarching responsibility for the management of security keys like the Supply Officer does. This division of responsibilities helps to maintain effective supply chain operations and ensures that only designated personnel have access to sensitive areas and materials.