PSC K034: Modification of Equipment – Metalworking Machinery
K034 is the product and service code (PSC) federal agencies use for “Modification of Equipment – Metalworking Machinery”, in the “Modification of Equipment” 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
- 1
- Federal contract spending, FY2025
- $3.9 million
- Share of contract dollars to small businesses, since FY2024
- 96%
Open count as of Nov 6, 2026, 10:29 PM ET. The search counts live, so its total can differ by a notice or two.
Open PSC K034 contracts with 2+ days to respond
- Solicitation - Aberdeen Test Center Welding, Machining, Painting, and Fabrication Services
Due in 10 daysNov 16, 2026, 2:00 PM EST
Where K034 sits in the PSC Manual
- Category: Service
- Group K: Modification of Equipment
- Group K0: Modification of Equipment
- Code K034: Modification of Equipment – Metalworking Machinery
NAICS codes used with PSC K034
The NAICS code on a contract sets the size standard for who counts as small. These are the codes agencies pair with K034 most often:
| NAICS | Industry | Spent, last 3 years | Open with PSC K034 |
|---|---|---|---|
| 333992 | Welding and Soldering Equipment Manufacturing | $8.9 million | 1 |
| 541330 | Engineering Services | $277,500 | — |
| 336611 | Ship Building and Repairing | $212,093 | — |
Open contracts under each code, with any PSC: NAICS 333992 · NAICS 541330 · NAICS 336611
Who buys under PSC K034
Agencies with the most contract dollars under K034 over the last three fiscal years, per USAspending.gov. Each name links to that agency's open contracts and buying history:
| Agency | Obligated |
|---|---|
| Department of the Army | $8.6 million |
| Department of the Navy | $542,494 |
| National Aeronautics and Space Administration | $272,300 |
Federal spending under PSC K034 by year
| Fiscal year | Contract obligations |
|---|---|
| FY2024 | $3.2 million |
| FY2025 | $3.9 million |
| FY2026 (incomplete) | $2.3 million |
Headline figures use FY2025, the last complete year. FY2026 is still incomplete and will rise until about early January 2027 as Defense data arrives: USAspending.gov publishes Defense contracts 90 days after they're signed. FY2027 began October 1, 2026; it's left out until Defense data for it starts to arrive.
Who wins PSC K034 contracts
| Company | Obligated, last 3 years |
|---|---|
| Science & Technology Corporation | $8.6 million |
| Phillips Corporation | $330,401 |
| Shapefidelity, Inc. | $277,500 |
| Colonna's Ship Yard, Incorporated | $212,093 |
Linked names have a FedReady profile, which shows the NAICS codes a business is registered as small under. Most large companies have none.
Large prime contractors (companies that hold the contract with the agency) subcontract part of their work to small businesses. See which primes subcontract, by NAICS code.
Research PSC K034 work
By the NAICS codes this work goes with, the one with the most spending first: who won recently, contracts ending soon, agencies' planned buys and the large primes that subcontract it, nationwide. Each code shows only the pages that exist for it:
- 333992 Welding and Soldering Equipment Manufacturing: who won recently · large primes that subcontract. Not available for 333992 yet: contracts ending in the next 12 months or planned buys. Its NAICS page shows who buys it.
- 541330 Engineering Services: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
- 336611 Ship Building and Repairing: who won recently · contracts ending in the next 12 months · planned buys · large primes that subcontract
Related PSC codes
- K010 Modification of Equipment – Weapons
- K011 Modification of Equipment – Nuclear Ordnance
- K012 Modification of Equipment – Fire Control Equipment
- K013 Modification of Equipment – Ammunition and Explosives
- K014 Modification of Equipment – Guided Missiles
- K015 Modification of Equipment – Aircraft and Airframe Structural Components
- K016 Modification of Equipment – Aircraft Components and Accessories
- K017 Modification of Equipment – Aircraft Launching, Landing, and Ground Handling Equipment
- K018 Modification of Equipment – Space Vehicles
- K019 Modification of Equipment – Ships, Small Craft, Pontoons, and Floating Docks
Frequently asked questions
What is PSC K034?
K034 is the service code in the federal Product and Service Code (PSC) Manual named “Modification of Equipment – Metalworking Machinery”, under K (Modification of Equipment) and K0 (Modification of Equipment). 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 K034?
Most federal contract dollars under PSC K034 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 K034?
Contract opportunities are posted on SAM.gov with their PSC and NAICS codes. 1 open notice uses PSC K034 right now. FedReady can match new ones to your business and email you, free.
Keep going
Sources: SAM.gov Contract Opportunities, USAspending.gov and the PSC Manual. How we count.