This is an unrestricted solicitation for a firm-fixed price purchase order to supply five specific antenna units, with delivery required by August 6, 2026. The items must have clear traceability to the Original Equipment Manufacturer, Chelton Avionics Inc., and the contractor must provide a Certificate of Conformance. No drawings, specifications, or schematics are available from the agency. The anticipated award date is on or about June 1, 2026. No budget amount or performance location is specified.