This is an unrestricted solicitation for a firm-fixed price purchase order to supply 300 Filter Elements (NSN 4330-00-872-1779), with an option for up to 200 additional units. The required delivery date is June 30, 2026, and the government may exercise optional quantity modifications for up to 365 days after award. All parts must be new, approved items, and a Certificate of Conformance is required; no drawings or specifications are available. Performance location is not specified, and no budget amount is provided.