This opportunity is for a small business set-aside to manufacture a seal assembly for a 5-inch ball valve, designated as Special Emphasis (Level I) material for a crucial shipboard system. The contractor must maintain a quality system per ISO-9001 with specific calibration requirements, and the place of performance cannot be changed without authorization. The requested delivery schedule is 540 days, and the contract will be issued bilaterally with a DO rating for national defense under the Defense Priorities and Allocations System. The work involves strict traceability, certification, and material control requirements for the specified Delrin components, with Government Quality Assurance at source.