The U.S. Air Force is seeking information from vendors capable of providing specific obsolete AN/UPX-40 IFF components, including Quad Processor CCAs, IFF Receivers, and Power Converters, for the NATO AWACS fleet lifetime extension program. This is a planning Request for Information (RFI) only and is not a solicitation for proposals. White paper responses are due by 30 January 2026. No specific budget or location for performance is detailed in this notice.