This is an unrestricted solicitation for a firm-fixed-price purchase order to supply ten (10) Vent Tubes (NSN 4710-01-290-3548), with an option for up to ten additional units. All parts must be new, have clear traceability to the Original Equipment Manufacturer (OEM), Sikorsky Aircraft Corporation, and include a Certificate of Conformance. The requested delivery date for the initial order is February 1, 2027. No drawings, specifications, or schematics are available from the agency. The location for performance of services is not specified.