# SAM #N3220527Q7027

Refurbishment of three USNS COMFORT air-conditioning variable frequency drives

**Buyer:** MSC Norfolk
**Posted:** November 02, 2026
**Respond By:** November 09, 2026
**Identifier:** N3220527Q7027
**NAICS:** 336611, 811219, 811310

The U.S. Navy’s Military Sealift Command is seeking factory refurbishment of spare variable frequency drives supporting USNS COMFORT’s air-conditioning plant.
- **Government buyer:** U.S. Navy, Military Sealift Command (MSC), MSC Headquarters Norfolk (MSCHQ Norfolk). The solicitation lists Maria Morris as the point of contact.
- **OEMs and service source:** **Rockwell / Reliance Electric** is identified as the VFD manufacturer; **Carrier Transicold Marine Systems** is the required service source and must provide OEM technical support.
- **Equipment:** Three government-furnished VFDs for the Carrier 500-ton air-conditioning plant. The listed equipment part number is **19XRV5557937CR8648**; the manufacturer’s part number is **64LR4160C503D**.
- **Refurbishment scope:** One job to restore all three drives to Class A, service-ready condition; perform operational testing, adjustments and calibration; provide a typed report of results, repairs and parts; and package each drive separately for long-term storage and overseas shipment.
- **Performance period:** Approximately 7.5 months. No option years or annual subscription are specified.
- **Value:** No contract value is stated; the range below is an estimate.

### Description

<p>USNS COMFORT REFURBISHMENT OF SPARE VARIABLE FREQUENCY DRIVE (VFD)</p>

[View original listing](https://sam.gov/opp/aa5da78a65b04db7adbcb02681b30cdf/view)