Diamond-Roltran LLC
Littleton, MA
- UEI
- JT42D3ML4VN9
- CAGE
- 53J11
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- SAM.gov registration date
- Physical address
- 59 Porter Rd, Littleton, MA 01460, USA
- Website
- diamondroll-ring.com
- Industry
-
- Materials
- Metals & Mining
- SIC code
- 35 Industrial Machinery & Equipment
Registration and certifications come from SAM.gov and the SBA; company details from public web sources. Updated .
Contract obligations by fiscal year
| Fiscal year | Obligated |
|---|---|
| FY2027 To date | $0 |
| FY2026 | $331,329 |
| FY2025 | $847,618 |
| FY2024 | $1,743,925 |
| FY2023 | $22,000 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of the Navy | $331,329 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Raytheon Company | FA861124CB001 | $1,145,016 |
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About the company
Diamond-Roltran LLC is a veteran-owned manufacturer of advanced radar and sensor system components headquartered in Littleton, Massachusetts. The company specializes in the design, manufacturing, and supply of high-precision maritime radar components, particularly slip ring and roll ring assemblies used in critical defense applications. Diamond-Roltran has established itself as a niche expert in providing specialized technical components to the U.S. Navy and Federal Aviation Administration, competing successfully in open federal procurement processes without reliance on set-aside designations.
Diamond-Roltran has provided AN/SPS-49 radar system components across multiple federal contract awards spanning from 2021 through 2025. The company's primary customer has been the Naval Sea Systems Command, which has issued four delivery orders under the firm's Indefinite Delivery Contract framework, totaling approximately $2.1 million for AN/SPS-49 slip ring assemblies with rolling contact technology and AN/SPS-49 roll ring components. Additionally, the Federal Aviation Administration Headquarters has awarded Diamond-Roltran four separate purchase orders valued at approximately $500,000 collectively for assets in support of the National Airspace System, including slip ring assemblies, roll ring assemblies, and AN/SPS-49 components. All contract awards have utilized firm fixed-price pricing structures with no set-aside designations, and all manufacturing and delivery activities are performed at the contractor's Littleton facility. The delivery orders and purchase orders reflect the company's consistent performance in supplying critical rotating contact components essential for Navy air search radar system functionality aboard surface ships and FAA radar infrastructure maintenance.
Diamond-Roltran holds a single-award Indefinite Delivery Contract with the Naval Sea Systems Command valued at $5,824,702, awarded on September 28, 2021, with a completion date of September 27, 2026. This IDV encompasses the design, manufacturing, and supply of AN/SPS-49 roll rings with rolling contact technology and AN/SPS-49 slip ring new manufacturing. The indefinite delivery vehicle structure provides NAVSEA with flexible procurement authority to issue delivery orders on an as-needed basis for fleet maintenance, upgrades, and modernization initiatives. Through August 2025, the Naval Sea Systems Command and U.S. Pacific Fleet Forces have exercised four delivery orders against this contract, including orders for $107,076 (September 2021), $668,248 (July 2024), $668,248 (September 2024), and $695,712 (August 2025), demonstrating sustained demand for Diamond-Roltran's specialized components in supporting Navy air defense capabilities and operational readiness.
Quick answers
Is Diamond-Roltran LLC registered in SAM.gov?
Yes. Diamond-Roltran LLC's SAM.gov registration is active through January 29, 2027.
How much has Diamond-Roltran LLC received in federal contracts?
Federal contracts obligated $847,618 to Diamond-Roltran LLC in fiscal year 2025 and $2,944,872 in fiscal years 2023 through 2027.
How does Diamond-Roltran LLC rank among federal contractors?
Diamond-Roltran LLC ranked #30 in PSC 5977 and #48 in PSC 5840 in FY2025.
What is Diamond-Roltran LLC's most recent federal award?
Diamond-Roltran LLC's most recent federal contract award is QTY 3 SPS-49 roll ring new manufacture (N0016426FL129), from Naval Sea Systems Command (Navy), on July 21, 2026.
On GovTribe
See Diamond-Roltran LLC's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors