This document outlines the process for submitting Source Approval Requests (SARs) for national stock numbers (NSNs) to the Defense Logistics Agency (DLA). It specifies that SARs should be sent directly to the buyer for open solicitations, whereas those without open solicitations must be submitted electronically via the DoD SAFE site, eliminating the use of physical media like CDs. The submission process requires an email request to receive a drop-off link, including essential information like CAGE code and NSN. The document emphasizes the importance of evaluating item demand and provides resources for estimating requirements. The review period for SARs may exceed 180 days, after which formal notification will be issued. Key resources mentioned include the DLA Supplier Requirements Visibility Application and PUB LOG FLIS for tracking multiple service management. This guidance is crucial for entities seeking to navigate the approval process efficiently within the context of government procurement and contracting.

The Aviation Source Approval and Management Handbook outlines procedures for approving sources of aviation parts, focusing on ensuring quality and safety through comprehensive source management. It is structured into several chapters detailing the approval process, responsibilities of procuring activities, Source Approval Requests (SAR), reverse engineering, and alternate source qualifications. Key points include the requirement for thorough evaluations of prospective suppliers, including their manufacturing capabilities, historical performance, and compliance with established technical and quality standards. The handbook emphasizes the need for cooperation between military agencies and ensures that only approved sources are contracted for Critical Safety Items (CSIs). Additionally, it discusses local purchases, government manufacturing, surplus materials considerations, and the roles of various stakeholders like the Integrated Materiel Managers and Engineering Support Activities in managing quality assurance. Overall, this document serves as a critical guide for maintaining effective procurement processes in government contracting for aviation components, supporting goals of safety, transparency, and competition.