This is a total small business set-aside for the manufacture of a Retainer, Lower for a 5-inch Hull and Backup Ball Valve, designated as SPECIAL EMPHASIS material for a crucial shipboard system. The contractor must provide a quality system per ISO-9001, with final delivery of material due 365 days after the contract's effective date. Performance is at the contractor's facility, with Government Quality Assurance at source and no changes to the place of performance without authorization. The contract includes a DO-rated order under the Defense Priorities and Allocations System and requires submission of Certification Data CDRLs 20 days before scheduled delivery. No budget amount is specified.