Presolicitation notice from the Department of Defense, specifically the Department of the Navy, is seeking to procure a replacement part for aircraft doors. The item, categorized under airframe structural components, has a National Stock Number (NSN) of 7R-1560-017060932-RQ and a reference number of B001263L01003-2TSP. The quantity required is 2 each, with delivery 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 may submit a capability statement, proposal, or quotation for consideration. The item requires Government source approval due to its flight critical nature and inadequate technical data for procurement via full and open competition. Only previously approved sources will be solicited. The notice provides information on the NAVSUP Source Approval Information Brochure for SPARES, which outlines the technical data required for submission based on the company's experience in manufacturing or repairing similar items. The brochure can be obtained at the provided link. Offers that fail to provide the required data or document previous submission will not be considered for award.