STEM DISC ASSEMBLY
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, is soliciting proposals for a STEM DISC ASSEMBLY for a 1/4 inch globe valve. This critical component is designated as "SPECIAL EMPHASIS material (Level I, Scope of Certification, or Quality Assured)" for crucial shipboard systems. This opportunity is a Total Small Business Set-Aside, and proposals are due by August 7, 2026.
Scope of Work
The requirement is for the complete stem and disk assembly, in accordance with NAVSEA drawing 803-6397434, part number 803-6397434-X11XX1-95. The material must be MIL-DTL-24252 for both the stem (Composition 1, Condition A) and disc (Composition I, Condition CA-7), with no weld repair allowed. Manufacturing processes must adhere to strict standards, including cut internal threads and mercury-free components.
Contract & Timeline
- Type: Solicitation (for a Firm Fixed-Price award, implied by nature of requirement)
- Set-Aside: Total Small Business Set-Aside (per
NOTICE OF TOTAL SMALL BUSINESS SET-ASIDEclause) - Proposal Due: August 7, 2026, 20:30 UTC
- Published: May 11, 2026
- DPAS Rating: DO certified for national defense under the Defense Priorities and Allocations System.
- Acquisition: Pursuant to Emergency Acquisition Flexibilities (EAF).
Key Requirements & Quality Assurance
- Quality System: Contractors must maintain a quality system in accordance with ISO-9001 (or MIL-I-45208) and a calibration system per ISO-10012/ANSI-Z540.3/ISO-17025 (or MIL-STD-45662).
- Testing & Certification: Quantitative chemical and mechanical analysis, ultrasonic inspection, and a Certificate of Compliance (Special Emphasis C of C) are required. Electronic signatures on Level I certification documents are accepted under specific controls.
- Traceability: Strict material traceability from raw material to finished component, with unique markings, is mandatory. Traceability markings must be maintained through assembly and be legible.
- Inspection: Government Quality Assurance (GQA) at source is required. Final inspection includes material sampling (ANSI/ASQ-Z1.4) and 100% inspection of material verification, traceability, and Non-Destructive Test (NDT) certifications.
- Subcontractors: Prime contractors are responsible for assessing, auditing, and flowing down quality requirements to sub-tier suppliers.
- Packaging: MIL-STD 2073 packaging applies.
Submission & Contact
- Certification Data: Must be submitted to Portsmouth Naval Shipyard via Wide Area Work Flow (WAWF) prior to each shipment. WAWF details: "Ship to" N50286, "Inspect by" N39040, "Accept by" N39040, with email notification to PORT_PTNH_WAWF_Notification@navy.mil. No material is to be shipped prior to acceptance.
- Drawings: Access to drawings must be requested on SAM.gov, followed by an email to the Primary POC.
- Contact: Brittany A. Langletz (brittany.a.langletz.civ@us.navy.mil).