An/SPS-49 roll ring with rolling contact technology
Ended Indefinite Delivery Contract Awarded Last action
- Contract number
- N0016421DWP73
- Awardee
-
Diamond-Roltran LLC UEI JT42D3ML4VN9
- Awarding agency
-
Naval Sea Systems Command
Department of the Navy, Department of Defense
- Task orders
- 5 $2,554,144 obligated
Award facts
- Opportunity
-
- N0016421RWP73 Solicitation number
- Combined order value
- $2,470,613 Current and potential, with all options
- Last date to order 100% complete
- IDV ceiling 22% used
- $11,649,404.00
- Maximum order
- $5,824,702.00
- Award type
- Single award
- Who can order
- Only the awarding agency
- Contracting staff
- NAICS code
- 334419 Other Electronic Component Manufacturing
- PSC
- 5840 Radar Equipment, Except Airborne
- Set-aside
- No set-aside
- Competition
- Not Competed · 1 offer Only One Source
- Pricing
- Firm Fixed Price
- Legislative mandates
-
- Walsh-Healey Public Contracts Act FAR subpart 22.6
Award details come from SAM.gov/FPDS.
About this IDV
Naval Sea Systems Command awarded a single-award indefinite-delivery contract to Diamond-Roltran LLC on September 28, 2021, with a ceiling of $11,649,404 and an ultimate completion date of September 27, 2026. The contract covers design, manufacturing, and supply of AN/SPS-49 roll rings with rolling contact technology and AN/SPS-49 slip ring new manufacturing. Diamond-Roltran is a veteran-owned manufacturer based in Littleton, Massachusetts.
All work is performed at the contractor's Littleton facility. The AN/SPS-49 is a critical air search radar system deployed on Navy surface ships; the roll ring and slip ring assemblies are essential rotating contact components that enable radar operational functionality aboard surface ships.
Through August 2025, Naval Sea Systems Command and U.S. Pacific Fleet Forces exercised four delivery orders against this IDC: $107,076 (September 2021), $668,248 (July 2024), $668,248 (September 2024), and $695,712 (August 2025). The most recent delivery order, issued by U.S. Pacific Fleet Forces in August 2025 for $695,712, covers new manufacture of AN/SPS-49 roll rings with completion targeted for April 15, 2026. All delivery orders use firm fixed-price pricing and carry no set-aside designation.
Task orders
| Task order | Ordering agency | Obligated | Awarded |
|---|---|---|---|
| QTY 3 SPS-49 roll ring new manufacture | Naval Sea Systems Command (Navy) | $331,329 | |
| New manufacture of an/SPS-49 roll rings. | Naval Sea Systems Command (Navy) | $695,712 | |
| An/SPS-49 rotary slip ring assemblies | Naval Sea Systems Command (Navy) | $751,779 | |
| An/SPS-49 slip ring with rolling contact | Naval Sea Systems Command (Navy) | $668,248 | |
| An/SPS-49 slip ring with rolling contact | Naval Sea Systems Command (Navy) | $107,076 |
Transactions
| Action | Obligated | Date |
|---|---|---|
| Other Administrative Action | $0 | |
| Other Administrative Action | $0 | |
| Supplemental Agreement for work within scope | $0 | |
| Other Administrative Action | $0 | |
| Supplemental Agreement for work within scope | $0 | |
| Original award | $0 |
Quick answers
Who was awarded contract N0016421DWP73?
N0016421DWP73 was awarded to Diamond-Roltran LLC by Naval Sea Systems Command (Department of the Navy) on September 28, 2021.
How much is contract N0016421DWP73 worth?
Orders under N0016421DWP73 have obligated $2,554,144. Their combined current value, with exercised options, is $2,470,613. N0016421DWP73's own ceiling is $11,649,404. A single order can be worth up to $5,824,702.
How many orders have been placed under contract N0016421DWP73?
5 orders have been placed under N0016421DWP73, the latest on July 21, 2026.
Who can order from contract N0016421DWP73?
N0016421DWP73 is a single award indefinite delivery contract. Only the awarding agency can place orders on it.
Was contract N0016421DWP73 competed?
The extent of competition for N0016421DWP73 was not competed. The government received 1 offer.
On GovTribe
See this IDV's full record
- Every order and transaction
- The awardee's other awards and teaming partners
- Similar IDVs and recompete opportunities
- Ask GovTribe AI about this IDV