NAVSUP WSS Mechanicsburg requires a Stem for a size 2 1/2 Ball Valve manufactured to NAVSEA Drawing 845-7108792, Item 3, from ASTM-B150 Alloy C63200 (Temper TQ50 or TQ55). The item is Level I/SUBSAFE/Scope of Certification special-emphasis material for a crucial shipboard system, requiring oxygen cleaning by trained personnel per MIL-STD-1330, Navy Source Certification prior to O2 cleaning, higher-level inspection, and extensive Level I traceability/certification and quality-system requirements (ISO 9001 or MIL-I-45208). Government quality assurance is performed at source, and the place of performance may not change without Contracting Officer authorization; if packaging occurs at a different facility, the offeror must identify that facility’s name, address, and CAGE. This is a total small business set-aside under Emergency Acquisition Flexibilities, and the resulting award will be DPAS-rated and issued bilaterally requiring the contractor’s written acceptance. A one-year warranty from date of delivery applies.