PSC codes › 6636
PSC 6636 — Environmental Chambers and Related Equipment: federal contracts
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What PSC 6636 covers
Description: Environmental Chambers and Related Equipment
Includes: Chambers; Wind Tunnels; Enclosures specifically designed to simulate an environmental condition; Weatherometers; Fadeometers; Specially designed equipment and components exclusively related to environmental chambers.
Excludes: General purpose prefabricated buildings, chambers, panels, and components (FSC 5410); Controlled Environmental Conditioning Kits and Sets (FSC 4240); Baths (FSC 4510); Ovens (FSC 7310); Kilns (FSC 3630); Radiosonde Baseline Check Sets (FSC 6660); Divers Recompression Chambers (FSC 4220); Altitude Training Decompression Chambers (FSC 6930); and chambers used as training devices (FSC 6930); Checkout and Test Equipment (FSC 6625); Chemical Analysis Instruments (FSC 6630); Electrical and Electronic Properties Measuring and Testing Instruments (FSC 6625); Meteorological Instruments (FSC 6660).
Notes: This class includes only those environmental chambers used exclusively to perform controlled tests, under simulated conditions, to determine physical damage and/or changes in operating characteristics for equipment and components such as Humidity, Immersion, Moisture; Altitude; Explosion; Thermal Shock; Sand and Dust; Flammability; Seal. Environmental chambers included in this class provide data regarding service life and behavior of various items equivalent to actual service conditions existing in the field.
Official definition: GSA PSC Manual (PSC April 2025.xlsx), acquisition.gov/psc-manual. Category: Industrial Products & Services › Test & Measurement Supplies.
Who is winning new PSC 6636 work
Contractors ranked by obligations on awards that started FY2024–FY2027 to date.
| Contractor | Obligations | Awards |
|---|---|---|
| CEDARVILLE ENGINEERING GROUP LLC | $13.3M | 1 |
| APPLIED PHYSICAL ELECTRONICS, LC | $4.3M | 1 |
| VENTUREDYNE LTD | $2.2M | 7 |
| JIRACOR LLC | $2.0M | 1 |
| PERCIVAL SCIENTIFIC INCORPORATED | $1.4M | 14 |
| LINDE ENGINEERING NORTH AMERICA LLC | $1.3M | 1 |
| SAMYAK SOLUTIONS, INC. | $1.3M | 6 |
| PPG INDUSTRIES, INC. | $809K | 3 |
| AANTILIA LLC | $745K | 3 |
| CHASE SUPPLY, INC. | $663K | 2 |
How competitive is PSC 6636?
- 29.8% of obligations on these awards were competed.
- 23.0% of competed awards that report offers drew a single offer (n=113).
- 83.4% went to small businesses.
- The five largest contractors hold 60.5% across 106 contractors.
NAICS codes used on PSC 6636 awards
| NAICS | Industry | Share |
|---|---|---|
| 334519 | Other Measuring and Controlling Device Manufacturing | 42.7% |
| 334516 | Analytical Laboratory Instrument Manufacturing | 15.4% |
| 334515 | Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals | 11.3% |
| 333415 | Air-Conditioning and Warm Air Heating Equipment and Commercial and Industrial Refrigeration Equipment Manufacturing | 5.3% |
| 333310 | Commercial and Service Industry Machinery Manufacturing | 5.2% |
| 334513 | Instruments and Related Products Manufacturing for Measuring, Displaying, and Controlling Industrial Process Variables | 2.6% |
| 541511 | Custom Computer Programming Services | 2.5% |
| 334512 | Automatic Environmental Control Manufacturing for Residential, Commercial, and Appliance Use | 2.3% |
Related PSC codes
6640 Laboratory Equipment and Supplies · J066 Maintenance, Repair and Rebuilding of Equipment: Instruments and Laboratory Equipment · 6695 Combination and Miscellaneous Instruments · 6515 Medical and Surgical Instruments, Equipment, and Supplies · 6685 Pressure, Temperature, and Humidity Measuring and Controlling Instruments · 6630 Chemical Analysis Instruments · 6625 Electrical and Electronic Properties Measuring and Testing Instruments · 6680 Liquid and Gas Flow, Liquid Level, and Mechanical Motion Measuring Instruments
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