This is a procurement for the Level One Program, involving a stem for a size 4-inch ball valve used in a crucial shipboard system, designated as SPECIAL EMPHASIS material (Level I). The contractor must provide and maintain a quality system in accordance with ISO-9001, with specific calibration system requirements, and submit a certificate of compliance. Material must be traceable to certification test reports, with quantitative chemical and mechanical analysis required, and all waivers or deviations require Contracting Officer approval. The delivery schedule requires submission of all certification data CDRLs 20 days prior to delivery, with final material delivery due 365 days after award. This is a total small business set-aside, and performance will be at the contractor's facility with Government Quality Assurance at source.