48--VALVE,BALL

This contract is for the procurement of a 1-1/2 inch ball valve designated as SPECIAL EMPHASIS material (Level I, Quality Assured) for use in a critical shipboard system, where failure could result in catastrophic consequences including loss of life or the vessel itself. The contract type is Firm-Fixed Price with a requested delivery schedule of 720 days, under FOB Destination terms, and is issued as a Small Business Set-Aside under NAICS code 332919. The solicitation is evaluated under a Lowest Priced, Technically Acceptable (LPTA) methodology, with technical acceptability serving as a mandatory pass/fail gate; offers must fully comply with all solicitation requirements without exceptions. The valve must conform to Naval Sea Systems Command Drawing 7108906 and multiple referenced standards including MIL-DTL-1222, QQ-N-286, ASTM-B369, SAE AMS-6931, and ISO-9001, with strict requirements for material traceability, chemical and mechanical certification, and non-destructive testing. All critical components, including the body, tailpiece, stem, stud, self-locking nuts, and ball, must be manufactured from specified alloys and undergo rigorous testing including dye penetrant, ultrasonic, radiography, pressure testing, and slow strain rate tensile tests performed only by approved laboratories. Traceability and certification are paramount, requiring each part to be permanently marked with unique traceability identifiers traceable to certified test reports, with 100% verification of material certifications, NDT reports, and marking legibility. Radiography of the valve body and weldments must meet T9074-AS-GIB-010/271 and S9074-AR-GIB-010A/278 standards, with all radiographic data, including shooting sketches and reader sheets, submitted for Navy approval prior to shipment. Welding and brazing procedures must be qualified and approved, with prohibited repairs on QQ-N-286 material. The contractor must maintain a quality system compliant with ISO-9001 and ISO-10012 or MIL-I-45208, subject to government audits at source, and must flow down all contractual quality and compliance requirements to subcontractors. All deliveries require a certificate of compliance signed by authorized personnel, referencing the full 18-character NSN and demonstrating trace