This is a contract for the manufacture and delivery of silver brazing alloy rings (QQ-B-654, Class IV) designated as SPECIAL EMPHASIS material for a crucial shipboard system, requiring extensive quality assurance and certification. The final delivery of material must be completed on or before 365 days after the effective date of the resulting contract. The performance location requires Government Quality Assurance at source, and the place of performance may not be changed without authorization. The contract is a DO-rated priority order for national defense and is set aside for small businesses. Key requirements include a one-year warranty, submission of certification data 20 days prior to scheduled delivery, and adherence to strict quality systems like ISO-9001.