NSN: 1HM 4820 015454388 L1 item name: stem, fluid valve

The Department of the Navy Naval Supply Systems Command seeks nine units of a stem fluid valve (NSN 1HM 4820-01-545-4388), a Level One Special Emphasis Material item, with quotations due June 22, 2026. The procurement is set aside for total small business.

Place of performance is Portsmouth Naval Shipyard (N50286) in Kittery, Maine, with a 450-day delivery period. The material must conform to Naval Sea Systems Command Drawing 7383596 and QQ-N-286 specification, in annealed and age-hardened condition. Certifications required include quantitative chemical and mechanical analysis, ultrasonic inspection of starting material meeting T9074-AS-GIB-010/271 or MIL-STD-2132 standards, threads formed by cutting only with inspection per FED-STD-H28 (ASME B1 equivalents permitted), and O-ring groove inspection using General Acceptance Criteria. All certifications must be positive and unqualified. Additional compliance mandates include item unique identification marking per MIL-STD-130 data matrix standards, MIL-STD-2073 Level 1 packaging specifications, domestic origin for ball and roller bearings, Buy American compliance, NIST SP 800-171 cybersecurity requirements, and hazardous material identification where applicable. Quotations must be submitted via WAWF to Portsmouth Naval Shipyard (N39040) for acceptance prior to shipment. Inspection and acceptance occur at the contractor's plant with Government Quality Assurance oversight. Award will be made on a lowest-priced, technically acceptable basis with consideration of past performance. NAICS code 332919; PSC code 4820.