This is a three-year Firm-Fixed-Price Indefinite-Delivery, Indefinite-Quantity weld service contract for NSWC Philadelphia. Each delivery order requires two welders for two-week trips (80 hours each), with a maximum of five trips per contract year. All travel, material, and other direct costs must be included in the fixed price per order. The solicitation has been amended to extend the due date to 22 May 2026. Performance location is at NSWC Philadelphia.