PSC H329

Overview

The Product Service Code (PSC) framework is a four-character coding system the U.S. federal government uses to classify products and services procured through federal contracts. PSCs are recorded in FPDS/SAM to standardize reporting, analysis, and spend-tracking and are maintained via the PSC Manual. ¹

PSC H329 is the inspection code for engine accessories. The PSC Manual lists H329 as “Inspection‑ Engine Accessories” and notes the group “Includes: Commercial Testing and Laboratory Services” and “Excludes: Medical and Dental Laboratory Services,” meaning H329 is used for reporting inspection/test actions on engine accessory items when the predominant effort is commercial testing or laboratory inspection. ¹

What this PSC covers

• Commercial testing and laboratory inspection services for engine accessory components. ¹
• Functional inspection and acceptance testing of accessory subassemblies. Not specified by official sources ¹.
• Non‑medical laboratory analysis supporting accessory performance verification. Not specified by official sources ¹.
• Vendor or OEM‑provided inspection reports and certification for engine accessories. Not specified by official sources ¹.
• On‑site or third‑party inspection services reported as the predominant contract effort. Not specified by official sources ¹.

Related NAICS and PSC codes

Type	Code	Descriptor
PSC	H328	Inspection‑ Engines, Turbines, and Components. 1
PSC	H129	Quality Control‑ Engine Accessories. 1
PSC	J029	Maint/Repair/Rebuild Of Equipment‑ Engine Accessories. 1

How agencies typically report H329

• FPDS reporting practice: contracting offices select the single PSC that best represents the predominant product or service on the action; when inspection/testing of engine accessories is the main effort, H329 is the appropriate PSC to report in element 8A. ²
• Use in award listings: H329 appears on contract actions where third‑party or commercial laboratory testing/inspection of engine accessory items is contracted as the primary deliverable. Not specified in finer detail by official sources. ¹

Frequently asked questions

• When should an action use PSC H329 instead of H328?

Use H329 when the predominant procurement is inspection/testing specifically of engine accessories. H328 is used for engines, turbines, and larger engine components; the PSC Manual distinguishes the two groups. ¹

• Does H329 cover maintenance, repair, or overhaul work?

No. Maintenance/repair/rebuild activities are normally reported under J‑group PSCs (for example, J029). H329 is intended for inspection/testing as the main contractual effort. ¹

• Are medical or dental laboratory inspections included under H329?

The PSC Manual explicitly excludes medical and dental laboratory services from H329; those inspections should be coded to the appropriate medical PSCs. ¹

• Which FPDS field holds the PSC and how does that affect H329 reporting?

The PSC is entered in FPDS data element 8A (“Product or Service Code”). Agencies must select the PSC that best represents the predominant buy; when inspection of engine accessories is predominant, record H329 in element 8A. ²

Useful resources

• https://app.g2xchange.com/psc/H329
• Product and Service Codes Manual (PSC Manual), acquisition.gov — official PSC group definitions.
• FPDS Glossary — Product or Service Code guidance, fpds.gov.

References

1. Product and Service Codes Manual (PSC Manual), acquisition.gov. https://www.acquisition.gov/psc-manual

2. FPDS Glossary — Product or Service Code guidance, FPDS. https://www.fpds.gov/help_V1_1/Glossary.htm