This is an unrestricted solicitation for a firm-fixed price purchase order to supply 50 units of a specific filter element (NSN 1650-01-669-1430), which must be new and traceable to the Original Equipment Manufacturer, PTI Technologies, Inc. All items require a Certificate of Conformance, and no drawings or specifications are available from the agency. Offers are due by July 24, 2026, with an anticipated award date on or about July 31, 2026. The applicable North American Industry Classification Standard Code is 336413, with a small business size standard of 1,250 employees. No budget amount or location for performance of services is specified.