PSC K034

Overview

The Product Service Code (PSC) taxonomy is the U.S. federal government’s standardized system for classifying what is procured on contract actions. PSCs are recorded in FPDS and related acquisition systems to enable consistent tracking, analysis, and reporting of government spending; the PSC list and guidance are maintained through the Product and Service Code Manual on Acquisition.gov. The PSC designation K034 — Modification of Equipment- Metalworking Machinery — is used when the principal purpose of a contract action is the modification, retrofit, or alteration of existing metalworking machinery rather than the procurement of new machines. Agencies report K034 when the primary deliverable is modification of installed equipment and when the action does not primarily represent routine maintenance or new-equipment purchase.¹

See also on G2X:

• PSC K034
• PSC J034
• PSC L034

What this PSC covers

• Equipment modification services for lathes, mills, and similar metalworking machines
• Integration of retrofitted subassemblies and controls into existing metalworking equipment
• Machine-tool upgrades to improve capacity, accuracy, or automation features
• Rework or retrofit for compatibility with new tooling or fixtures
• On-site alteration and integration services associated with metalworking machinery modification¹

Related NAICS and PSC codes

Suggested NAICS crosswalks for PSC K034 are maintained in PSC tool datasets; specific NAICS recommendations are not published directly in the PSC Manual excerpt available on Acquisition.gov. Not specified by official sources.¹

Typical procurement contexts

Use PSC K034 in modification orders, delivery/task orders, and stand-alone contracts where an agency funds a material alteration to installed metalworking machinery (for example, control-retrofit, spindle upgrade, or added automation axis). Agencies report PSCs in FPDS when the line-item purpose aligns with equipment modification rather than maintenance or new equipment procurement.²

Frequently asked questions

• Q: When should an acquisition use PSC K034 instead of a maintenance PSC?
  A: Use PSC K034 when the contract’s primary objective is to modify or materially alter metalworking machinery (for example, retrofit of new controls or integration of a new axis). Routine maintenance, repair, or rebuilding belongs to the J-series maintenance/repair PSCs rather than K034.¹

• Q: Does K034 apply to purchase of new metalworking machines?
  A: No. K034 is for modification of existing equipment. Procurement of new metalworking machines should be reported under the appropriate product PSC for new machinery or other product PSCs; FPDS validation expects the PSC that best identifies the product or service procured.²

• Q: Are suggested NAICS codes required when reporting K034 in FPDS?
  A: FPDS requires a principal NAICS for each award, but the PSC Manual does not embed specific NAICS crosswalks for every PSC. Suggested crosswalks are provided in PSC datasets and tools; agencies select the NAICS that best reflects the industry of the primary work. Not specified directly in the Manual.¹

• Q: Where are authoritative PSC definitions and selection tools for K034?
  A: The authoritative definitions and change history are published in the Product and Service Code Manual on Acquisition.gov; for practical selection assistance use the PSC Selection Tool (PSCTool) and FPDS help pages, which provide searchable guidance and mapping support.³

Useful resources

• Acquisition.gov — Product and Service Code Manual (current edition)
• FPDS — Glossary & FPDS-NG data dictionary (Product/Service Code reporting rules)
• Federal Acquisition Institute (FAI) — Product Service Code (PSC) Tool (PSCTool)

References

1. https://www.acquisition.gov/content/psc-manual-april-2025.pdf
2. https://www.fpds.gov/help_V1_0/Glossary.htm
3. https://www.fai.gov/content/product-service-code-psc-tool