This amendment changes the quantity to 5 EA of a Retainer Nut built to Carleton Technologies drawing 3423-2001, Item 7, from QQ-N-281 Class A or B material. The part is Special Emphasis Level I/Scope of Certification material for a crucial shipboard system, requiring ISO-9001 quality controls, material traceability/certifications, welding/brazing qualifications if applicable, and Government quality assurance at source. The contract includes a one-year warranty from delivery and FOB destination, with Portsmouth Naval Shipyard referenced and its DODAAC updated from N00102 to N50286. Certification CDRL review/acceptance by PNSY is six working days after receipt, and final delivery is on or before 365 days after the effective date of the resulting contract. The order will be DO-rated under DPAS and is issued pursuant to Emergency Acquisition Flexibilities.