APA material is identified by which numeric digits?

APA (Annual Procurement Allowance) material is identified by the numeric digits that are even numbers, which include 2, 4, 6, or 8. This categorization helps in classifying and managing the different types of materials within the logistics and inventory systems of the Navy. The identification through these specific digits is significant for ensuring accurate tracking and reporting of materials that are procured annually, which aids in streamlining processes related to funding, inventory management, and supply chain logistics. Understanding the numeric classification system, such as the specific digits associated with APA materials, is crucial for effective inventory control and procurement practices within the Navy.