This is an unrestricted solicitation for a firm-fixed price purchase order to supply 2,000 caulking gun nozzles (NSN 5120-00-167-0150), with an option for up to an additional 2,000 units. The requested delivery date is September 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, specifications, or schematics are available from the agency. The location for performance of services is not specified.