# SAM #MSFC_26-142

Sole-source avionics units and engineering support for Artemis IV and V

**Buyer:** NASA Marshall Space Flight Center
**Posted:** October 27, 2026
**Identifier:** MSFC_26-142
**NAICS:** 541715, 336419, 334511

NASA Marshall Space Flight Center is pursuing a sole-source procurement of avionics units and engineering support for the Artemis IV and V missions.
- **Requirement:** Secondary Payload Avionics Units (AUs), a spare unit, and engineering support for the AUs.
- **Purpose:** The units provide power and control for the SLS Secondary Payload Deployment System, which deploys secondary payloads from the Multi-Purpose Crew Vehicle Stage Adapter.
- **Unit capabilities:** Each AU includes a sequencer that can store and execute multiple deployment scenarios, plus a battery to power the deployment system. The total quantity, including the spare, is not specified.
- **Proposed supplier:** NASA plans a sole-source award to Space Vector LLC, identified as the qualified designer and manufacturer with flight heritage.
- **Urgency rationale:** NASA says competition could add at least five months and put mission schedules at risk.
- **Schedule context:** The procurement supports Artemis IV and V. Artemis IV is planned for launch by 2028, with capability demonstration milestones planned for FY 2027. A contract performance period is not specified.
- **Pricing and identifiers:** The provided information does not state an anticipated cost, part numbers, or exact quantities.

### Description

<p>Secondary Payload Avionics Units (AUs) and engineering support for Artemis missions including a spare unit, as part of the SLS Secondary Payload Deployment&nbsp;System to control the deployment of secondary&nbsp;payloads from the Orion Stage Adaptor during these missions. Each AU is comprised of a sequencer,&nbsp;capable of storing and executing multiple deployment scenarios, and a battery to supply&nbsp;power to the deployment system for the duration of the mission objectives.</p>

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