Air-Lock, Incorporated
Milford, CT Part of David Clark Company Incorporated
- UEI
- U23XE2DC1S55
- CAGE
- 97375
- Primary NAICS
- 332510 Hardware Manufacturing
- SAM.gov registration
- Active through
Company facts
- FY2025 rankings
-
Its parent company, David Clark Company Incorporated, ranks:
- Self-certified in SAM.gov
- Entity structure
- Corporate Entity (Not Tax Exempt)
- Other NAICS codes in SAM.gov
- Corporate family
-
-
Parent
Worcester, MA
NRKPRG331FB4
-
Parent
Worcester, MA
NRKPRG331FB4
- SAM.gov registration date
- Physical address
- 108 Gulf St, Milford, CT 06460, USA
- Website
- airlockinc.com
- Employees
- 11-50
- Estimated annual revenue
- $1M-$10M
- Industry
-
- Industrials
- Capital Goods
- Aerospace & Defense
- SIC code
- 37 Transportation Equipment
- Profiles
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 | $2,917,977 |
| FY2025 | $1,258,497 |
| FY2024 | $960,223 |
| FY2023 | $2,212,187 |
Top agencies by obligations
| Rank | Agency | Obligated, FY2026–FY2027 | Share |
|---|---|---|---|
| 1 | National Aeronautics and Space Administration | $2,805,498 | |
| 2 | Defense Logistics Agency | $112,479 |
Contract awards
Latest 5 listed here. See the rest on GovTribe.
Contract subawards
| Prime contractor | Prime award | Amount | Awarded |
|---|---|---|---|
| Hamilton Sundstrand Space Systems International, Inc. | NNJ10TB01C | $61,160 | |
| Hamilton Sundstrand Space Systems International, Inc. | NNJ10TB01C | $122,355 | |
| Hamilton Sundstrand Space Systems International, Inc. | NNJ10TB01C | $130,470 |
Similar vendors
| Vendor | Location | Primary NAICS |
|---|---|---|
| Space Systems Division | Houston, TX | 541330 Engineering Services |
| ILC Astrospace LLC | Frederica, DE | 541330 Engineering Services |
| David Clark Company Incorporated | Worcester, MA | 334290 Other Communications Equipment Manufacturing |
| Paragon Space Development Corporation | Tucson, AZ | 541715 Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) |
| 3-Dimensional Services Group | Rochester Hills, MI | 332510 Hardware Manufacturing |
About the company
Air-Lock, Incorporated, a small business aerospace hardware manufacturer based in Milford, Connecticut, operates as a prime contractor (99% of awards) delivering high-precision spacesuit components, quick-disconnect couplings, pneumatic valves, and fluid-system fittings to NASA and the Defense Logistics Agency. Air-Lock is a subsidiary of David Clark Company Incorporated, a specialized manufacturer of communication equipment and life support systems serving federal agencies across military and aerospace sectors.
Air-Lock's customer concentration is heavily weighted toward space exploration. NASA Johnson Space Center and NASA Shared Services Center together account for 97% of combined potential value across the vendor's footprint — $35 million and $18.5 million respectively — driven by a $15.4 million single-award IDIQ with Johnson Space Center for spacesuit components and a $14 million single-award IDIQ with Shared Services Center for Orion Crew Survival Systems (OCSS) suit hardware supporting the Artemis lunar exploration program. Delivery orders under the Artemis vehicle have moved rapidly: between May and September 2026, Air-Lock received seven task orders totaling $1.7 million for OCSS suit ancillary hardware, refurbishment work, and connectors across the Human Landing System program. The Defense Logistics Agency Land and Maritime and Troop Support divisions place the second-largest volume of awards (235 awards) but at much lower individual values — quick-disconnect couplings, coupling halves, pneumatic valves, webbing straps, and connector caps priced in the low thousands to mid-tens of thousands per order. Recent representative work includes a $401 thousand delivery order for OCSS suit ancillary hardware (Shared Services Center, September 2026), a $860 thousand delivery order for XEMU space suit bearings and components (Johnson Space Center, September 2023), a $573 thousand order for OCSS suit connectors and umbilicals under the Human Landing System program (Johnson Space Center, June 2024), and recurring DLA orders for quick-disconnect components ranging from $1,200 to $115 thousand with total-small-business set-asides applied intermittently.
Activity has remained steady at 13 to 16 awards annually over the past five years, with 481 total awards in the source data and $61.6 million combined potential value. Seven awards totaling $2.5 million face ultimate completion within the next twenty-four months. Air-Lock's NAICS footprint centers on fabricated pipe and pipe fitting manufacturing (159 awards) and hardware manufacturing (81 awards); PSC concentration runs to hose, pipe, tube and fitting fittings (197 awards) and marine lifesaving and diving equipment (69 awards), reflecting the company's role as a specialty fastener and connector supplier to both space and defense logistics programs.
Air-Lock subcontracts to Hamilton Sundstrand Space Systems International on Extravehicular Space Operations Contract (ESOC) work, providing connectors and relief valves for spaceflight hardware; the source names three sub-awards under Hamilton Sundstrand between February 2024 and July 2025. The vendor competes predominantly in full-and-open procurements (no set-aside designation on the majority of prime awards), though intermittent total-small-business set-asides appear on DLA supply orders. The parent company, David Clark, holds its own federal contract vehicles and prime awards, positioning Air-Lock as one of several operating units within a broader defense and aerospace contractor family.
Quick answers
Is Air-Lock, Incorporated registered in SAM.gov?
Yes. Air-Lock, Incorporated's SAM.gov registration is active through January 6, 2027.
How much has Air-Lock, Incorporated received in federal contracts?
Federal contracts obligated $1,258,497 to Air-Lock, Incorporated in fiscal year 2025 and $7,348,884 in fiscal years 2023 through 2027.
How does Air-Lock, Incorporated rank among federal contractors?
Air-Lock, Incorporated's parent company, David Clark Company Incorporated, ranked #40 in PSC 4220, #51 in NAICS 326299 and #62 in NAICS 32629 in FY2025.
What is Air-Lock, Incorporated's most recent federal award?
Air-Lock, Incorporated's most recent federal contract award is Task order 10 - suit ancillary hardware procurement for ocss suit use on HLS part v (80NSSC26F0115), from Shared Services Center, on September 30, 2026.
On GovTribe
See Air-Lock, Incorporated's full federal record
- Federal contract awards
- IDV awards
- Subcontracting relationships
- Funding analysis by agency, NAICS and set-aside
- Similar vendors