PSC J029

Overview

The Product Service Code (PSC) system standardizes how the U.S. federal government classifies products and services in procurement records, enabling consistent reporting and analysis across FPDS and related systems. The PSC Manual on Acquisition.gov is the authoritative guide for PSC administration, descriptions, and coding guidance for contracting officers and data stewards. ¹

PSC J029 is listed in the PSC Manual as "Maintenance, Repair, and Rebuilding of Equipment- Engine Accessories." Agencies use this PSC in FPDS reporting to identify actions where the predominant work procured is maintenance, repair, or rebuild of engine accessory systems and closely related services (for example, depot- or shop-level overhaul of accessory assemblies). ¹

• See also on G2X:
  • G2X — PSC J029 overview
  • G2X — PSC K029 (Modification of equipment — engine accessories)
  • G2X — PSC N029 (Installation of equipment — engine accessories)

What this PSC covers

• Maintenance of engine accessories (general). ¹
• Repair of engine accessory components. ¹
• Rebuilding/overhaul of engine accessory assemblies. ¹
• Depot- or shop-level service actions for engine accessories. ¹
• Inspection, testing, and functional verification tied to accessory maintenance. ¹
• Associated spare-parts replacement and reconditioning when the maintenance/repair activity is predominant. ¹

Related NAICS and PSC codes

Not specified by official sources. ¹

Common contracting contexts

PSC J029 is commonly applied to contract actions supporting aircraft, ground-vehicle, industrial, and marine engines where accessory systems (pumps, fuel system accessories, turbochargers, governors, etc.) are the primary subject of the procurement. Federal award records in FPDS illustrate frequent pairing of J029 with aerospace and engine-support NAICS in practice. ²

Coding guidance (official)

• The PSC Manual instructs that the PSC selected in FPDS should reflect the predominant product or service procured; for mixed procurements the single PSC entry should correspond to the primary buy by dollar value or scope. ¹
• The PSC Manual and FPDS ezSearch are the authoritative sources for PSC descriptions and for reviewing historic contract records to see how agencies have coded similar procurements. ¹

Frequently asked questions

• Q: What exactly does PSC J029 denote?
  A: PSC J029 denotes maintenance, repair, and rebuilding of equipment specifically described as "Engine Accessories" in the PSC Manual; use J029 to report contract actions where those tasks are the predominant deliverable. ¹

• Q: Are there official NAICS mappings for J029?
  A: The PSC Manual does not publish a formal NAICS-to-PSC crosswalk; agencies commonly select NAICS that reflect the industry or product family supporting the accessory work. Examples observed in practice include NAICS 336412, 336413, 333922, and 811310. ¹

• Q: How should the predominant PSC be chosen for a contract that includes accessory repair plus other services?
  A: Select the PSC that represents the predominant product or service by dollar value or scope on the action; if engine-accessory maintenance is the primary scope, use PSC J029. ¹

• Q: Where can historic federal actions coded J029 be searched?
  A: FPDS ezSearch and related FPDS reporting tools are the primary systems for locating past awards and orders coded to PSC J029; Acquisition.gov provides the PSC Manual and downloads that define the code. ²

Useful resources

• G2X — PSC J029 overview (internal)
• Product and Service Codes (PSC) Manual (Acquisition.gov) — authoritative PSC definitions and guidance. ¹
• FPDS ezSearch (FPDS) — searchable award records showing J029 use in federal contract actions. ²

References

1. Product and Service Codes (PSC) Manual (April 2025 PDF). https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf.
2. FPDS — ezSearch (Federal Procurement Data System). https://www.fpds.gov/ezsearch/.