Using QSL test results to extend the Shelf-Life period of on-hand material, what must the material have?

When using QSL (Quality Shelf-Life) test results to extend the shelf-life period of on-hand material, it is essential for the material to have the same National Stock Number (NSN), contract, and lot/batch number. This requirement ensures that the extended shelf-life is applicable specifically to that particular batch of material. By maintaining these identifiers, it confirms that the material has been tested under the same conditions and standards as the original batch, and any conclusions drawn from the QSL results are valid and specific to that material.

These identifiers also help in tracking and managing inventory accurately, ensuring that only materials that meet the same quality and safety standards are allowed extensions based on reliable testing. Thus, the integrity and safety of the supply chain are maintained while complying with regulatory and operational requirements.