The document outlines the process for submitting Source Approval Requests (SARs) concerning national stock numbers (NSNs) within the Department of Defense (DoD). It specifies that SARs should only be submitted for open solicitations directly to the designated buyer and informs that submissions for NSNs without open solicitations must utilize the DoD SAFE transmission platform, eliminating the need for physical CDs. To initiate this process, submit an email to DLA Aviation requesting a SAR drop-off, which will yield a link for file submission after verification of the details provided. It is emphasized that SARs are subject to evaluation restraints based on cost-effectiveness and item demand, and offer guidance through the DLA Supplier Requirements Visibility Application. The review period for submitted SARs can extend beyond 180 days, and a formal notification will follow the decision. Additionally, information about multiple services utilizing the NSN can be accessed via the PUB LOG FLIS to facilitate better forecasting assessments. This process underscores a shift towards streamlined electronic communications and efficiency in the acquisition process for defense materials.

The Aviation Source Approval and Management Handbook outlines procedures for the approval and management of sources supplying Critical Safety Items (CSIs) within the Department of Defense (DoD). It emphasizes compliance with legal frameworks such as the Competition in Contracting Act and the Federal Acquisition Regulation to ensure full competition. The handbook details the responsibilities of procuring activities regarding source management, the Source Approval Requests (SAR) process, and risk management associated with sourcing from unapproved suppliers. It discusses the types of sources eligible for approval, such as prime contractors, original equipment manufacturers (OEMs), and approved repair facilities, guiding agencies on evaluating supplier capabilities, quality assurance, and technical data for CSIs. The handbook also addresses reverse engineering and parts manufacturer approval (PMA) processes, establishing guidelines for procuring activities to follow when considering alternative sources or surplus materials. Overall, the handbook serves as a critical resource to ensure that all suppliers can consistently meet design and quality standards, ultimately supporting military readiness and operational efficiency within the aviation sector of the U.S. government procurement landscape.