This is a contract for the procurement of a SPECIAL EMPHASIS (Level I) valve stem and related material for a crucial shipboard system, where failure could result in serious injury, loss of life, or loss of the ship. The final delivery of material is required on or before 365 days after the effective date of the resulting contract. The work involves strict quality assurance, including material certification, traceability, and adherence to numerous military and industry specifications like QQ-N-286 and ISO 9001. Government Quality Assurance at the source is required, and the place of performance cannot be changed without authorization. The order is a "DO" rated priority for national defense under the DPAS system.