This opportunity is for a fixed-price contract to manufacture and supply a complete stem and disc assembly for shipboard stop valves, designated as SPECIAL EMPHASIS (Level I) material due to its critical safety application. The contractor must maintain a quality system compliant with ISO-9001 and provide extensive certifications, traceability, and testing documentation. Final delivery of material is required within 365 days after the contract's effective date, with certification data due 20 days prior to scheduled delivery. Performance of services is subject to Government Quality Assurance at the contractor's source location, which cannot be changed without authorization. This is a total small business set-aside with a DO-rated national defense priority.