STEM/SEAT KIT
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, specifically NAVSUP Weapon Systems Support Mechanicsburg, has issued a Solicitation for a STEM/SEAT KIT (Product Service Code 4820 - Valves, Nonpowered). This opportunity involves the manufacture of critical components designated as Special Emphasis Material for crucial shipboard systems, requiring stringent quality control and traceability. Proposals are due by June 26, 2026.
Scope of Work
This solicitation requires the supply of a STEM/SEAT KIT, with the Seat to be in accordance with Parker Hannifin Corporation drawing 2641635 and the Needle with drawing 2631316. Key material requirements include QQ-N-281 for the Seat and ASTM-B196 for the Needle. The scope emphasizes:
- Material Certification: Quantitative chemical and mechanical analysis for specified parts.
- Testing Certification: Non-Destructive Tests for weld repair/production welds.
- Manufacturing Processes: Specific requirements for O-ring grooves, welding/brazing (per S9074-AR-GIB-010A/278, 0900-LP-001-7000, S9074-AQ-GIB-010/248), internal thread formation (cutting only), and thread inspection (FED-STD-H28 series).
- Configuration Control: Procedures for Waivers/Deviations and Engineering Change Proposals (ECPs).
- Mercury Free: Strict prohibition of mercury or mercury-containing compounds.
Quality Assurance & Traceability
Contractors must maintain a quality system in accordance with ISO-9001 (or MIL-I-45208 as an alternate) and calibration systems per ISO-10012 or ANSI-Z540.3 (or MIL-STD-45662 as an alternate). Government Quality Assurance (GQA) will be performed at the source, with DCMA QAR involvement. Critical requirements include:
- Material Traceability: Maintained from raw material to final component, with unique traceability numbers marked on materials and linked to certification reports.
- Certificates of Compliance: Required for all items, especially for Special Emphasis Material, detailing compliance with specifications and test results. Certification data, including weld filler metal C of C, must be submitted via Wide Area Work Flow (WAWF) to Portsmouth Naval Shipyard (Ship to N50286, Inspect/Accept by N39040) for review and acceptance prior to shipment.
- Inspection: Comprehensive receiving, in-process, and final inspections, including 100% inspection of material verification data and traceability markings.
- Subcontractor Management: Prime contractors are responsible for ensuring subcontractors adhere to all quality and traceability requirements.
Contract & Timeline
- Type: Solicitation
- Set-Aside: None specified
- Response Due: June 26, 2026, 8:30 PM EDT
- Published: June 8, 2026
- Packaging: MIL-STD 2073 applies.
Additional Notes
This procurement is issued pursuant to Emergency Acquisition Flexibilities (EAF). The Portsmouth Naval Shipyard DODAAC has changed to N50286. All contractual documents are considered issued upon deposit in mail, facsimile, or electronic commerce methods.