The Department of Defense, through the Department of the Navy's NAVSUP Weapon Systems Support, is seeking a sole source procurement for two units of aircraft equipment, specifically identified by NSN 7R-1680-015728130-CB and reference number 6120-0500-001. This acquisition is critical as the government lacks sufficient data to contract with any source other than the current supplier, and the items involved are subject to Free Trade Agreements and the World Trade Organization Government Procurement Agreement. Interested vendors must obtain Government Source Approval prior to award and submit the necessary documentation as outlined in the NAVSUP WSS Source Approval Brochure, which is available online. For further inquiries, potential bidders can contact Danielle M. Cutrera at danielle.cutrera@navy.mil or by phone at (215) 697-6566.