The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking a sole source procurement for five units of aircraft fuel tanks, specifically identified by NSN 7R-1560-017102635-LU and reference number 310J000-510. This acquisition is critical as the government lacks sufficient data to contract with sources other than the current supplier, emphasizing the importance of Government Source Approval prior to award. The items involved are subject to Free Trade Agreements and the World Trade Organization Government Procurement Agreement, highlighting their international significance. Interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure, available online, and can direct inquiries to Danielle M. Cutrera at danielle.cutrera@navy.mil or by phone at (215) 697-6566.