PSC 6665: Hazard – Detecting Instruments and Apparatus
6665 is the product and service code (PSC) federal agencies use for hazard – detecting instruments and apparatus, in the instruments and laboratory eqpt group. Here are the contracts open under it now, the NAICS codes it pairs with, and who buys and wins this work.
- Open contracts now
- 2
- Spending, FY2026
- $388.1 million
- Share to small businesses
- 36%
Open contracts with PSC 6665, due soonest
- Detector, Gas
✦ DLA Land Warren (an Army-supporting Defense Logistics Agency office) wants to buy 7 gas vapor detectors (NSN 6665-01-628-0980) plus an option for 7 more, as a total small…
Due in 9 daysOct 19, 2026
Where 6665 sits in the PSC Manual
- Category: Product
- Group 66: Instruments and Laboratory Eqpt
- Code 6665: Hazard – Detecting Instruments and Apparatus
NAICS codes used with PSC 6665
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with 6665 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 334517 | Irradiation Apparatus Manufacturing | $478.1 million |
| 334511 | Search, Detection, Navigation, Guidance, Aeronautical, and Nautical System and Instrument Manufacturing | $161.1 million |
| 334519 | Other Measuring and Controlling Device Manufacturing | $137.7 million |
| 334516 | Analytical Laboratory Instrument Manufacturing | $24.4 million |
| 541519 | Other Computer Related Services | $14.8 million |
| 335999 | All Other Miscellaneous Electrical Equipment and Component Manufacturing | $11.8 million |
Who buys under PSC 6665
Agencies with the most contract dollars under 6665 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| U.S. Customs and Border Protection | $489.7 million |
| Department of the Army | $163.6 million |
| Federal Acquisition Service | $61.9 million |
| Defense Logistics Agency | $56.1 million |
| Department of the Navy | $51.1 million |
| Department of the Air Force | $23.6 million |
| Federal Bureau of Investigation | $14 million |
| Office of Procurement Operations | $4.4 million |
Federal spending under PSC 6665 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $160.8 million |
| FY2025 | $334.2 million |
| FY2026 | $388.1 million |
| FY2027 (so far) | $0 |
Who wins PSC 6665 contracts
| Company | Obligated, last 3 years |
|---|---|
| Rapiscan Systems Inc | $159.8 million |
| Leidos, Inc. | $134.9 million |
| Astrophysics Inc | $84.6 million |
| Smiths Detection Inc. | $65 million |
| Teledyne Flir Defense, LLC | $49.9 million |
| Ludlum Measurements, Inc. | $47.5 million |
| Chemring Sensors and Electronic Systems, Inc. | $36.5 million |
| Leidos, Inc. | $31.7 million |
| Atlantic Diving Supply, Inc. | $25.3 million |
| Mountain Horse LLC | $19 million |
Related PSC codes
- 6605 Navigational Instruments
- 6610 Flight Instruments
- 6615 Automatic Pilot Mechanisms and Airborne Gyro Components
- 6620 Engine Instruments
- 6625 Electrical and Electronic Properties Measuring and Testing Instruments
- 6630 Chemical Analysis Instruments
- 6632 Analysis Instruments, Medical Laboratory Use
- 6635 Physical Properties Testing and Inspection
- 6636 Environmental Chambers and Related Equipment
- 6640 Laboratory Equipment and Supplies
Frequently asked questions
What is PSC 6665?
6665 is the product code in the federal Product and Service Code (PSC) Manual for hazard – detecting instruments and apparatus, under 66 (Instruments and Laboratory Eqpt). Agencies put a PSC on every contract to record what they bought.
What is the difference between a PSC and a NAICS code?
A PSC describes what the government is buying. A NAICS code describes the industry of the business doing the work, and it sets the SBA size standard for small business set-asides. Every contract notice has both.
Which NAICS code goes with PSC 6665?
Most federal contract dollars under PSC 6665 go with NAICS 334517 (Irradiation Apparatus Manufacturing), according to USAspending.gov. The contracting officer picks the NAICS code for each solicitation, so check the notice.
How do I find contracts that use PSC 6665?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 2 open notices use PSC 6665 right now. FedReady can match new ones to your business and email you, free.