A W Chesterton Co
Groveland, MA Sealing Device Division
- UEI
- N563V1T3Y9A6
- CAGE
- 71431
- Primary NAICS
- 339991 Gasket, Packing, and Sealing Device Manufacturing
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
- Self-certified in SAM.gov
- Entity structure
- Other
- Other NAICS codes in SAM.gov
- Corporate family
-
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- EGVGFFMUJW44
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- SAM.gov registration date
- Physical address
- 860 Salem St, Groveland, MA 01834, USA
- Website
- chesterton.com
- Employees
- 251-1K
- Estimated annual revenue
- $100M-$250M
- Industry
-
- Industrials
- Capital Goods
- Industrial Conglomerates
- Industrials & Manufacturing
- 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 | $771,159 |
| FY2025 | $1,187,853 |
| FY2024 | $444,538 |
| FY2023 | $572,035 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | Department of Homeland Security | $771,159 |
Contract awards
| Award | Agency | Obligated | Awarded |
|---|---|---|---|
| Seal shaft assemblies purchase | Coast Guard | $122,021 | |
| Installation of new shaft seals for CGC blacktip | Coast Guard | $15,000 | |
| Purchase of seal shaft assemblies | Coast Guard | $162,694 | |
| 5330-01-670-5723 | Coast Guard | $48,520 | |
| Seal shaft assemblies | Coast Guard | $89,482 |
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Rolls-Royce Marine North America Inc. | N6449823F4182 | $86,066 | |
| Bird-Johnson Propeller Company, LLC | N6449822F4013 | $660,447 | |
| Bird-Johnson Propeller Company, LLC | N6449822F4013 | $34,179 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Coastal Seal Services, LLC | Lincolnton, NC | 333618 Other Engine Equipment Manufacturing |
| VSP Technologies | Prince George, VA | 339991 Gasket, Packing, and Sealing Device Manufacturing |
| San Diego Seal Inc. | San Diego, CA | 339991 Gasket, Packing, and Sealing Device Manufacturing |
| Mapeco Products | Oxford, CT | 332312 Fabricated Structural Metal Manufacturing |
| Stein Seal Company | Harleysville, PA | 336412 Aircraft Engine and Engine Parts Manufacturing |
About the company
A W Chesterton Co, a for-profit Subchapter S Corporation manufacturer of industrial fluid sealing systems and mechanical seals based in Groveland, Massachusetts, operates as a prime contractor (99% of recent awards) supplying shaft seal assemblies, inflatable seals, packing gland kits, and related OEM sealing components to the federal government on a full-and-open, non-set-aside basis. Chesterton does not hold SBA designations and competes without set-aside protection across its prime footprint; all 468 prime awards carry no set-aside designation, reflecting its position as a sole-source original equipment manufacturer for specialized maritime sealing systems.
The vendor's federal footprint is heavily concentrated in maritime vessel maintenance. The Department of Homeland Security's U.S. Coast Guard dominates both revenue and strategic importance, anchoring 71 awards (12.7 million dollars combined potential value) and representing 73% of Chesterton's total dollar value across federal work. The Defense Logistics Agency Land and Maritime ranks second at 77 awards (2.5 million dollars), while the Department of the Navy's Naval Sea Systems Command and Naval Supply Systems Command together account for 242 awards but only 1.6 million dollars combined value — high volume, low-dollar transactional purchasing compared to the Coast Guard's consolidated, higher-value delivery orders. Chesterton serves 16 distinct federal customer agencies; the top five account for 87% of award count.
Chesterton's primary platform is a single-award Indefinite Delivery Contract (IDC) with the Coast Guard valued at $3.7 million, running through February 4, 2029, which consolidates procurement of approximately 520 OEM shaft seal systems and components and enables the agency to place delivery orders on an as-needed basis for fleet maintenance across cutters and patrol boats. Under this IDC, Chesterton has received multiple firm fixed-price delivery orders ranging from tens of thousands to over $480 thousand dollars; representative recent Coast Guard work includes a $488.9 thousand delivery order for seal shaft assemblies awarded September 11, 2025, a $234.7 thousand delivery order for seal shaft assemblies awarded March 27, 2025, and a $156.4 thousand delivery order for seal shaft assemblies awarded February 19, 2025. The Navy's Naval Supply Systems Command places orders under IDC N0010401DZD08 (128 task orders, $328 thousand combined value), a high-volume, low-dollar vehicle. Chesterton also holds IDC 70Z08024D13001B00 with the Coast Guard (11 task orders, $5.4 million combined value), a separate platform for seal shaft assemblies. Across all named parent vehicles, Chesterton places work through Navy and Coast Guard IDCs and basic ordering agreements with no GSA Schedules or government-wide vehicles present.
Activity has remained relatively flat year over year — eleven awards in 2022 through twelve in 2024, declining to seven awards in 2026 year-to-date — with minimal recompete exposure; only two awards face ultimate completion within the next twenty-four months, carrying $285 thousand in combined potential value. Chesterton's NAICS footprint is split across Pump and Pumping Equipment Manufacturing (195 awards) and Gasket, Packing, and Sealing Device Manufacturing (135 awards), with PSC coding concentrated in Power and Hand Pumps (284 awards) and Packing and Gasket Materials (103 awards), reflecting the OEM sealing and shaft seal assembly character of the work. Chesterton's subcontractor footprint is minimal; only three sub-awards appear in the source, awarded to Rolls-Royce Marine North America and Bird-Johnson Propeller Company, LLC between January and March 2024. The vendor's role as a specialized OEM supplier insulates it from broad teaming arrangements and positions it as sole-source to the Coast Guard and dominant supplier to Navy logistics operations, though the low-dollar, high-volume Navy transaction pattern suggests commodity-like purchasing rather than strategic partnership.
Quick answers
Is A W Chesterton Co registered in SAM.gov?
Yes. A W Chesterton Co's SAM.gov registration is active through June 2, 2027.
How much has A W Chesterton Co received in federal contracts?
Federal contracts obligated $1,187,853 to A W Chesterton Co in fiscal year 2025 and $2,975,585 in fiscal years 2023 through 2027.
How does A W Chesterton Co rank among federal contractors?
A W Chesterton Co ranked #27 in NAICS 339991, #39 in PSC 5330 and #80 in NAICS 33999 in FY2025.
What is A W Chesterton Co's most recent federal award?
A W Chesterton Co's most recent federal contract award is Seal shaft assemblies purchase (70Z08026F13031B00), from Coast Guard, on July 28, 2026.
On GovTribe
See A W Chesterton Co's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors