PSC 3439: Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
3439 is the product and service code (PSC) federal agencies use for miscellaneous welding, soldering, and brazing supplies and accessories, in the metalworking 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
- $11.6 million
- Share to small businesses
- 65%
Open contracts with PSC 3439, due soonest
- BRAZING ALLOY,SILVE
✦ The Navy (NAVSUP Weapon Systems Support, Mechanicsburg) is buying silver brazing rings (3/8 inch NPS) for use in a critical shipboard system.
Due in 12 daysOct 21, 2026
- ROD,WELDING
✦ NAVSUP Weapon Systems Support (Mechanicsburg) is buying welding rod (AWS A5.28, ER90S-B3 low-alloy steel filler metal, 1/16 inch, 36-inch cut lengths) for a crucial shipboard…
Due in 12 daysOct 21, 2026
- ROD,WELDING
Due in 31 daysNov 9, 2026
- SOLDERING-DESOLDERI
Due in 31 daysNov 9, 2026
Where 3439 sits in the PSC Manual
- Category: Product
- Group 34: Metalworking Machinery
- Code 3439: Miscellaneous Welding, Soldering, and Brazing Supplies and Accessories
NAICS codes used with PSC 3439
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with 3439 most often:
| NAICS | Industry | Spent, last 3 years |
|---|---|---|
| 333992 | Welding and Soldering Equipment Manufacturing | $34.6 million |
| 325199 | All Other Basic Organic Chemical Manufacturing | $2.1 million |
| 332117 | Powder Metallurgy Part Manufacturing | $2 million |
| 333914 | Measuring, Dispensing, and Other Pumping Equipment Manufacturing | $1.5 million |
| 325180 | Other Basic Inorganic Chemical Manufacturing | $1.3 million |
| 332216 | Saw Blade and Handtool Manufacturing | $1 million |
Who buys under PSC 3439
Agencies with the most contract dollars under 3439 over the last three fiscal years, per USAspending.gov:
| Agency | Obligated |
|---|---|
| Department of the Navy | $27.6 million |
| Defense Logistics Agency | $15.7 million |
| Department of the Army | $3.5 million |
| Department of the Air Force | $2.2 million |
| Federal Prison System / Bureau of Prisons | $254,438 |
| U.S. Coast Guard | $159,465 |
| Bureau of Indian Affairs and Bureau of Indian Education | $119,898 |
| Forest Service | $113,063 |
Federal spending under PSC 3439 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $17.1 million |
| FY2025 | $21.3 million |
| FY2026 | $11.6 million |
| FY2027 (so far) | $0 |
Who wins PSC 3439 contracts
| Company | Obligated, last 3 years |
|---|---|
| Triman Industries Inc | $11.3 million |
| Surface Engineering & Alloy Company, Inc. | $7.2 million |
| Arcos Industries LLC | $3.3 million |
| Powder Alloy Corporation | $2.2 million |
| S.J. Smith Co., Inc | $2 million |
| Lincoln Electric Holdings Inc | $1.6 million |
| Linmarr Associates, Inc. | $1.3 million |
| Titan International, Inc. | $1.3 million |
| The Lincoln Electric Company | $1.3 million |
| Painter Tool Incorporated | $1.1 million |
Related PSC codes
- 3405 Saws and Filing Machines
- 3408 Machining Centers and Way – Type Machines
- 3410 Electrical and Ultrasonic Erosion Machines
- 3411 Boring Machines
- 3412 Broaching Machines
- 3413 Drilling and Tapping Machines
- 3414 Gear Cutting and Finishing Machines
- 3415 Grinding Machines
- 3416 Lathes
- 3417 Milling Machines
Frequently asked questions
What is PSC 3439?
3439 is the product code in the federal Product and Service Code (PSC) Manual for miscellaneous welding, soldering, and brazing supplies and accessories, under 34 (Metalworking 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 3439?
Most federal contract dollars under PSC 3439 go with NAICS 333992 (Welding and Soldering 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 3439?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 5 open notices use PSC 3439 right now. FedReady can match new ones to your business and email you, free.