This is a U.S. Navy procurement for a SPECIAL EMPHASIS Tailpiece Assembly for a 10-inch ball valve, requiring a Confidential security clearance and access to classified documents. The final delivery of material is due on or before 365 days after the contract's effective date. The work involves stringent quality assurance, including welding, radiography, and hydrostatic testing, and the contractor must maintain a quality system in accordance with ISO-9001 or equivalent standards. The contract is a DO-rated priority order under the Defense Priorities and Allocations System (DPAS).