This opportunity is a total small business set-aside for the manufacture of a Stem Assembly (stem, retaining nut, and bushing) for a 10-inch ball valve, designated as SPECIAL EMPHASIS Level I material for use in a crucial shipboard system. The contract carries a DO national defense priority rating and will be awarded bilaterally under emergency acquisition flexibilities. Performance will be at the contractor’s facility, with Government Quality Assurance at source and no change of performance location without Contracting Officer authorization. Extensive quality and certification requirements apply, including ISO-9001 quality systems, material traceability, thread inspection per FED-STD-H28, and Navy-specified welding/brazing controls, with certain tests required to be performed by approved laboratories. No budget amount or performance timeline is specified.