Doppler Navigation Set (DNS) parts and repair
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 Army Contracting Command (ACC)-Aberdeen, on behalf of the Army Integrated Logistics Support Center (ILSC), is conducting a Sources Sought market survey to identify qualified sources for the repair of AN/ASN-157 Doppler Navigation Set (DNS) parts. This critical sensor provides highly accurate 3D velocity and navigation data for AH-64D/E Longbow Apache helicopters. The Government does not possess the Technical Data Package (TDP) for these parts. Responses are due by February 6, 2026.
Scope of Work
This market survey seeks information on capabilities to repair the AN/ASN-157 Doppler Navigation Set (DNS), NSN 6605-01-323-9061, P/N P510A003-02. The DNS is essential for the AH-64D/E Longbow Apache helicopters, integrating with GPS and INS to provide independent, jam-resistant navigation, and accurate 3D velocity data for fire-control, INS aiding, weapons delivery, and hovering operations. Its functionality is vital to prevent safety risks and ensure mission completion. The effort also includes the acquisition of hardware spares for sustainment.
Contract & Timeline
- Type: Sources Sought / Market Research
- Purpose: To determine if responsible sources exist and to assist in determining if this effort can be competitive and/or set aside for Small Business. This is not a Request for Quote or Proposal.
- Set-Aside: None specified (to be determined based on market research)
- Response Due: February 6, 2026
- Published: January 16, 2026
- Procurement History: W56JSR-22-D-0010, BAE Systems, POP Sep 2022 – Sep 2027.
Requested Information
Interested sources should submit information demonstrating their capability to repair the AN/ASN-157 DNS. This includes, but is not limited to:
- Company core competencies, CAGE code, DUNS, and technical point of contact.
- Past performance in manufacturing/supplying AN/ASN-157 DNS.
- Qualifications of engineering staff with relevant design and production experience.
- Experience with identifying test equipment and managing obsolescence issues, including program/assessment tools and alternative material identification.
- Capability to meet US Government delivery requirements (production lead time, capacity, surge capacity, part availability).
- Preferences regarding pricing terms (e.g., long-term, spot buy) and contract types (e.g., fixed quantity, IDIQ).
- Information on product stock and supply chain concerns.
Additional Notes
This is for planning purposes only; the Government does not intend to award a contract based on this announcement or reimburse response costs. All responses and information requests must be submitted via email to the Technical Point of Contact, Melinda Rivera (melinda.i.rivera.civ@army.mil), and the Competition Advocate. No phone inquiries will be accepted.