Repair parts fall under which DoD supply class?

• A. Class X (Material to support non-military program)
• B. Class IX (Repair parts)
• C. Class II (Rations and fuel)
• D. Class IV (Construction materials)

Answer: (B)

The main idea here is how DoD uses supply classes to organize material for procurement and maintenance. Repair parts are categorized as Class IX, which is specifically for parts and components used to repair and restore equipment to service. This classification keeps spares and replacements separate from consumables or other categories, making it easier to stock, order, and manage maintenance needs. For example, bearings, seals, gaskets, or replacement assemblies are typically Class IX items because their primary purpose is to fix or overhaul end items, not to supply initial operations (like rations) or to support construction or nonmilitary programs.