In the Navy supply system, what number is most commonly used to identify materials?

The National Stock Number (NSN) is the primary identification system utilized in the Navy supply chain to facilitate the management and procurement of materials. This standardized numbering system ensures that each item has a unique identifier that is recognized across all branches of the military, which helps streamline inventory control and logistical operations. The NSN provides essential information about the item, such as its classification, usage, and source, which is crucial for effective inventory management and ensures consistency throughout the supply system. This facilitates easy communication and transaction processes among various military units and suppliers, significantly enhancing operational efficiency.