PSC 3655: Gas Generating and Dispensing Systems, Fixed Or Mobile
3655 is the product and service code (PSC) federal agencies use for gas generating and dispensing systems, fixed or mobile, in the special industry machinery 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
- 5
- Spending, FY2026
- $27.1 million
- Share to small businesses
- 60%
Open contracts with PSC 3655, due soonest
- Portable Special-Purpose High-Purity Nitrogen Generation Systems
✦ Puget Sound Naval Shipyard (Navy) is doing market research for portable, containerized high-purity nitrogen generation systems for its Bremerton, WA shipyard.
Due in 7 daysOct 16, 2026
- AIR SEPARATION MODU
✦ NAVSUP Weapon Systems Support (Navy) has posted a solicitation for a spare part, an air separation module (NSN 1RM 3655 017002793).
Due in 9 daysOct 19, 2026
- GENERATOR,AIRCRAFT,, IN REPAIR/MODIFICATION OF
✦ The Navy (NAVSUP Weapon Systems Support) wants an aircraft generator repaired, tested and inspected and returned to ready-for-issue condition.
Due in 27 daysNov 6, 2026
Where 3655 sits in the PSC Manual
- Category: Product
- Group 36: Special Industry Machinery
- Code 3655: Gas Generating and Dispensing Systems, Fixed Or Mobile
NAICS codes used with PSC 3655
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with 3655 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 336413 | Other Aircraft Parts and Auxiliary Equipment Manufacturing | $36.7 million |
| 325120 | Industrial Gas Manufacturing | $27.2 million |
| 332919 | Other Metal Valve and Pipe Fitting Manufacturing | $14.1 million |
| 333998 | All Other Miscellaneous General Purpose Machinery Manufacturing | $13.3 million |
| 333912 | Air and Gas Compressor Manufacturing | $5.5 million |
| 237990 | Other Heavy and Civil Engineering Construction | $5.5 million |
Who buys under PSC 3655
Agencies with the most contract dollars under 3655 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Department of the Air Force | $29.8 million |
| National Aeronautics and Space Administration | $28.9 million |
| Department of the Navy | $23.9 million |
| Defense Logistics Agency | $16.4 million |
| Department of the Army | $6.8 million |
| Bureau of Land Management | $2 million |
| U.S. Coast Guard | $1.3 million |
| Federal Prison System / Bureau of Prisons | $135,992 |
Federal spending under PSC 3655 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $19.7 million |
| FY2025 | $62.5 million |
| FY2026 | $27.1 million |
| FY2027 (so far) | $0 |
Who wins PSC 3655 contracts
| Company | Obligated, last 3 years |
|---|---|
| Linde Engineering North America LLC | $24.5 million |
| Atap Inc | $18.6 million |
| Treadwell Corporation (Delaware) | $16.5 million |
| Mission Systems Davenport Inc. | $8 million |
| Hamilton Sundstrand Corporation | $6.3 million |
| Ses Constructors LLC | $5.5 million |
| Spaceline Technologies Inc. | $4.4 million |
| Greene Machine & Manufacturing Inc | $4.1 million |
| Boneal, Incorporated | $2.7 million |
| Chant Engineering Co Inc | $2.1 million |
Related PSC codes
- 3605 Food Products Machinery and Equipment
- 3610 Printing, Duplicating, and Bookbinding Equipment
- 3611 Industrial Marking Machines
- 3615 Pulp and Paper Industries Machinery
- 3620 Rubber and Plastics Working Machinery
- 3625 Textile Industries Machinery
- 3630 Clay and Concrete Products Industries Machinery
- 3635 Crystal and Glass Industries Machinery
- 3640 Tobacco Manufacturing Machinery
- 3645 Leather Tanning and Leather Working Industries Machinery
Frequently asked questions
What is PSC 3655?
3655 is the product code in the federal Product and Service Code (PSC) Manual for gas generating and dispensing systems, fixed or mobile, under 36 (Special Industry Machinery). 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 3655?
Most federal contract dollars under PSC 3655 go with NAICS 336413 (Other Aircraft Parts and Auxiliary Equipment 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 3655?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 5 open notices use PSC 3655 right now. FedReady can match new ones to your business and email you, free.