PSC H939

Overview

The Product Service Code (PSC) system standardizes how the U.S. federal government classifies products and services in procurement records, improving spend tracking, reporting, and category alignment across FPDS and SAM. The PSC Manual on Acquisition.gov is the authoritative maintenance and guidance source for PSC definitions and usage. ¹

PSC code H939 is listed in the PSC Manual as "Other Quality Control, Testing, and Inspection- Materials Handling Equipment." Agencies assign PSC H939 when the primary deliverable is quality‑control, testing, or inspection services related to materials‑handling equipment; the Manual provides the descriptor but does not enumerate an exhaustive list of specific tasks or test standards. ¹

• See also on G2X:
  • G2X — PSC H939
  • G2X — PSC H339
  • G2X — PSC J039

What this PSC covers

• Inspection of lifting and hoisting systems; Not specified by official sources. ¹
• Testing and calibration of conveyor and sortation systems; Not specified by official sources. ¹
• Quality control and functional testing of forklifts and pallet trucks; Not specified by official sources. ¹
• Inspection/testing of cranes, hoists, and jib systems; Not specified by official sources. ¹
• Non‑routine diagnostic testing of automated material‑handling controls and sensors; Not specified by official sources. ¹
• Documentation and reporting of inspection/test results for materials‑handling equipment; Not specified by official sources. ¹

Related NAICS and PSC codes

How agencies record and use H939

Federal contracting records show PSC H939 used across award types where a contract line item or task order funds quality control, testing, or inspection services tied to materials‑handling equipment. FPDS award records demonstrate pairing of H939 with several NAICS codes depending on procurement scope, such as instrument manufacturers and equipment wholesalers. ²

Frequently asked questions

• Q: What is the core distinction between PSC H939 and other H-series codes?
  A: PSC H939 is the label for "Other Quality Control, Testing, and Inspection- Materials Handling Equipment" and is intended for QC/test/inspection activities tied to materials‑handling systems. The PSC Manual gives the descriptor but does not prescribe an exhaustive scope. ¹

• Q: When would a contracting officer select H939 instead of an equipment PSC?
  A: Select H939 when the primary acquisition is testing, inspection, or quality‑control services rather than procurement of the equipment itself; purchases of equipment use product PSCs while service‑oriented inspections use the H‑series. ¹

• Q: Which NAICS codes commonly appear with H939 in award records?
  A: FPDS award data show H939 paired frequently with NAICS such as 334513, 423840, and 339999, reflecting instrument manufacturers, wholesalers, and miscellaneous manufacturing procurements requiring testing or inspection. ²

• Q: Where can I find guidance for correct PSC selection or search historical awards coded H939?
  A: Use FPDS and agency contract portals to search historical awards by PSC; the PSC Manual and the federal PSC Tool provide selection guidance and lookup capabilities. ³

Useful resources

• G2X — PSC H939: https://app.g2xchange.com/psc/H939
• Acquisition.gov — PSC Manual (authoritative PSC definitions and listings): https://www.acquisition.gov/content/psc-manual-april-2025.pdf
• FPDS — award/contract search (search by PSC): https://www.fpds.gov/ezsearch/
• FAI — Product Service Code (PSC) Tool overview: https://www.fai.gov/content/product-service-code-psc-tool

References

1. https://www.acquisition.gov/content/psc-manual-april-2025.pdf. [Acquisition.gov — Product and Service Code Manual]

2. https://www.fpds.gov/ezsearch/. [FPDS — award/contract search]

3. https://www.fai.gov/content/product-service-code-psc-tool. [FAI — Product Service Code (PSC) Tool]