PSC W029

Overview

The Product Service Code (PSC) system is the governmentwide taxonomy used to classify what the federal government buys; PSCs are recorded in FPDS/SAM to support procurement reporting, spend analysis, and category management and are maintained through the PSC Manual on Acquisition.gov.¹
PSC code W029 (Lease or Rental of Equipment — Engine Accessories) is the W‑series service code the PSC Manual assigns to contract actions whose predominant requirement is the lease or rental of engine accessory equipment. The Manual provides the official descriptor but does not supply an extended itemized includes/excludes list specific to W029 beyond the service title and product-group references.¹

• See also on G2X:
  • G2X — PSC W029
  • G2X — PSC W028
  • G2X — PSC 2990

What this PSC covers

• Lease or rental of engine accessory equipment where the lease/rental is the predominant contract deliverable (examples: starters, governors, mufflers, intake/exhaust accessories).¹
• Temporary provision of engine support accessories for operations, testing, or short‑term installation (non‑consumable modules intended for reuse).¹
• Rental of fuel‑system and electrical accessory assemblies used with engines when the action is a lease or rental rather than a purchase of parts. ¹
• Short‑term provision of accessory modules for both nonaircraft and aircraft engine applications when the item is clearly an accessory and the contract is for leasing/ rental services. ¹

Related NAICS and PSC codes

The PSC Manual does not list specific NAICS crosswalks for W029; contracting officers should select the NAICS appropriate to the overall supplies/services being acquired or the principal contractor activity. Not specified by official sources.¹

How this PSC relates to product codes (optional)

The PSC Manual organizes engine accessories into Product Group 29 (Engine Accessories) for product classification; that product grouping lists numeric PSCs covering specific accessory parts and sale items (for example, 2910, 2990, 2995). The Manual separates product PSC entries (physical items and classes) from W‑series service leasing codes such as W029, which should be used when the action is predominantly a lease or rental rather than a sale.¹

• Related product PSC examples: 2910, 2990, 2995.¹

• FPDS data entry note: PSC values are recorded in FPDS data element 8A; for lease/rental actions involving engine accessories, agencies should select the W‑series PSC that represents the predominant service (for example, W029).¹

Frequently asked questions

• Q: When should a contracting officer use PSC W029?
  A: Use PSC W029 when the predominant deliverable on a contract action is the lease or rental of engine accessory equipment (temporary, reusable accessory modules or assemblies); choose the PSC that best matches the predominant product or service for FPDS reporting.¹

• Q: Does the PSC Manual list specific "includes" or "excludes" for W029?
  A: The PSC Manual provides the descriptor "Lease or Rental of Equipment — Engine Accessories" but does not provide a detailed includes/excludes list specific to W029; agencies apply the descriptor and product‑group guidance when classifying actions. Not specified by official sources.¹

• Q: Are engine accessory parts reported under W029 or under numeric product PSCs?
  A: Physical parts sold or procured as supplies are typically reported to numeric product PSCs in Product Group 29 (for example, 2910 or 2990). Leasing or rental of those same accessories is reported under the appropriate W‑series service code such as W029.¹

• Q: How should I treat aircraft versus nonaircraft engine accessories under W029?
  A: The descriptor covers engine accessories generally; classify by whether the item is an accessory and whether the acquisition is a lease/rental. If granularity is needed, consult Product Group 29 product PSCs for parts and the Manual guidance for any aircraft‑specific reporting conventions. Not specified beyond the Manual descriptor.¹

Useful resources

• G2X — PSC W029 (overview)
• Product and Service Codes (PSC) Manual (April 2025 PDF).¹
• PSC Manual landing / index page on Acquisition.gov.¹

References

1. Product and Service Codes (PSC) Manual, April 2025 (PDF), Acquisition.gov: https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf.