Sole source procurement for an interface unit data (NSN 7R-7025-016241529-KB, part number 698258-7), quantity 39, with delivery FOB origin. The government lacks sufficient technical data to contract with any source other than the current one. The items are subject to Free Trade Agreements and the WTO Government Procurement Agreement. Interested non-approved sources must submit the information required by the NAVSUP WSS Source Approval Brochure to be considered. New source approval normally takes longer than the award timeline, so offers not already approved risk being ineligible.