PSC N077

Overview

The Product Service Code (PSC) system is the federal taxonomy used to classify goods and services purchased through federal procurement. PSCs are recorded in FPDS and contract records to identify what was acquired; the PSC Manual (and its supporting spreadsheets) provide code definitions, activation/end dates, and guidance for FPDS data elements. PSC N077 is defined in the PSC Manual as “Installation of Equipment‑ Musical Instruments, Phonographs, and Home Type Radios,” and is intended for actions where the predominant contract line item is installation of those equipment classes.¹

• See also on G2X:
  • G2X — PSC N077 overview
  • G2X — PSC J077 overview
  • G2X — PSC L077 overview

What this PSC covers

• Musical instrument installation and setup (including initial adjustment and configuration when provided as an installation service).¹
• Phonograph (record-player) installation and configuration.¹
• Home-type radio equipment installation, alignment, and tuning when part of an installation service.¹
• On-site mounting, placement, and initial operational testing when explicitly part of an installation service (scope/expectations not otherwise detailed in the Manual). Not specified by official sources.¹
• Delivery-to-installation scenarios where installation is the predominant contract effort. Not specified by official sources.¹

Related NAICS and PSC codes

The PSC Manual does not provide a governmentwide, definitive NAICS crosswalk specifically for PSC N077; authoritative NAICS mappings for individual PSCs are not specified in the Manual.¹

Reporting and coding guidance

• FPDS data element use: enter the PSC in FPDS data element 8A (“Product or Service Code”); select the PSC that represents the predominant product or service purchased by the contract action.¹
• Multiple-line procurements: where more than one product/service is present, select the PSC representing the predominant dollar or functional portion of the action for data element 8A, or code multiple line items appropriately per FPDS guidance.¹
• Distinct PSCs for related activities: maintenance/repair or technical-representative services for the same equipment are captured under other PSCs (for example, see PSC J077 and PSC L077 for repair/maintenance and technical-representative classifications respectively).¹

Frequently asked questions

• Q: When is PSC N077 the correct code to use on an FPDS record?
  A: Use PSC N077 when the predominant deliverable is installation of musical instruments, phonographs, or home-type radios. The Manual directs selecting the PSC that best represents the primary product or service in the action.¹

• Q: Is N077 used for repair, maintenance, or technical representation?
  A: No. Repair and maintenance of the same equipment are assigned to PSC J077; technical-representative or similar duties use PSC L077. Each is a distinct PSC in the Manual.¹

• Q: Does the PSC Manual list NAICS codes that map to N077?
  A: The PSC Manual does not provide a governmentwide, definitive NAICS crosswalk for PSC N077; official mapping is not specified in the Manual.¹

• Q: Can a single contract include N077 and other installation PSCs?
  A: Yes. Contracts with multiple significant efforts may include multiple PSC entries or should select the PSC that represents the predominant effort for FPDS data element 8A per FPDS guidance.¹

• Q: Where to check PSC activation, revision, or end-dates for N077?
  A: Check the PSC Manual and its accompanying spreadsheets on acquisition.gov for activation and change-history details; those files are the official change-control source for PSCs.¹

Useful resources

• G2X — PSC N077 (G2X data page)
• PSC Manual (full PDF), acquisition.gov — official PSC definitions and change history.¹

References

1. Product and Service Code Manual (PSC Manual, April 2025), U.S. General Services Administration. https://www.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf