Presolicitation notice from the Department of Defense, specifically the Department of the Navy, is seeking to procure 4 units of a replacement part identified as NSN 7R-1560-016174239-RQ, with reference number 3671223F209-4SP. The item, categorized under airframe structural components, is intended for use in aircraft and similar applications. The procurement will be delivered FOB origin. The notice states that the government intends to solicit and negotiate with only one source under the authority of FAR 6.302-1. However, all responsible sources are encouraged to submit a capability statement, proposal, or quotation for consideration. The item requires government source approval due to its flight critical nature and the lack of adequate technical data for procurement via full and open competition. Only previously approved sources will be solicited. The notice provides instructions for obtaining the NAVSUP Source Approval Information Brochure for SPARES, which outlines the technical data required for source approval. Offers that fail to provide the required data or document previous submission will not be considered for award. For further inquiries, contact Nadia Govorushko at nadia.govorushko@navy.mil.