STEM,VALVE
Overview
Buyer
Place of Performance
NAICS
PSC
Set Aside
Original Source
Timeline
Qualification Details
Fit reasons
- NAICS alignment with historical contract wins in similar service areas.
- Scope strongly matches core technical capabilities and delivery model.
Risks
- Past performance thresholds may require one additional teaming partner.
- Potential clarification needed on staffing minimums before bid/no-bid.
Next steps
Validate eligibility requirements, assign capture owner, and schedule partner outreach to confirm teaming strategy before submission planning.
Quick Summary
The Department of the Navy (NAVSUP Weapon Systems Support Mech) is soliciting for STEM, VALVE components, specifically a Complete Stem Assembly for a 3-inch Hull and Backup Ball Valve. This is a highly critical item designated as Special Emphasis Material (Level I, Scope of Certification, or Quality Assured) for shipboard systems, requiring stringent quality control and traceability. The resultant award will be a bilateral contract and a "DO" rated order certified for national defense use under DPAS. Proposals are due by February 23, 2026.
Scope of Work
The contractor will be responsible for manufacturing a complete stem assembly in accordance with BUSHIPS drawings 845-2109891 and 845-2445483, with specific modifications and material requirements. Key aspects include:
- Material Specifications: ASTM-B505 (alloy C90300) for the stem retaining nut and QQ-N-286 (Alloy UNS N05500) for the stem, with required chemical and mechanical analysis certifications.
- Non-Metallic Materials: Must satisfy toxicity and flammability requirements of NAVSEA SS800-AG-MAN-010/P-9290.
- Testing & Inspection: Includes ultrasonic inspection, Slow Strain Rate Tensile Tests (performed by approved laboratories), and thread inspection per FED-STD-H28 series.
- Quality Assurance: Requires a quality system in accordance with ISO-9001 (or MIL-I-45208 as an alternate) and calibration system requirements of ISO-10012 or ANSI-Z540.3 with ISO-17025 (or MIL-STD-45662 as an alternate). Government Quality Assurance at source is required.
- Traceability & Certification: Strict traceability from raw material to final product, including unique traceability numbers and comprehensive material certification test reports. All certification data must be submitted via WAWF to Portsmouth Naval Shipyard for review and acceptance prior to shipment.
- Configuration Control: Procedures for waivers/deviations and Engineering Change Proposals (ECPs) are detailed.
Contract & Timeline
- Type: Solicitation (bilateral award)
- Set-Aside: Total Small Business Set-Aside
- Response Due: February 23, 2026, 9:30 PM EST
- Published: February 17, 2026
Evaluation
Award eligibility requires sources with an acceptable Quality Assurance Manual. The opportunity emphasizes strict adherence to technical specifications, quality systems, and material certifications due to the critical nature of the item.
Additional Notes
Drawings must be requested via SAM.gov, including the CAGE code. Submission of all DD form 1423 certification data (CDRLs) is required 20 days prior to the material delivery date. Mercury and mercury-containing compounds are prohibited.