PSC B521: SPECIAL STUDIES/ANALYSIS- HISTORICAL — Federal Procurement Code

B5 - SPECIAL STUDIES - NOT R and D L1: Professional Services

Description

Historical Studies

Suggested adjacent classifications

PSC codes describe what the government buys. These related classifications help connect procurement codes to industries, commodities, and trade workflows.

Related NAICS industries

712

Museums, Historical Sites, and Similar Institutions

7121

Museums, Historical Sites, and Similar Institutions

Related UNSPSC categories

39112201

Atmospheric effect apparatus

Flow injection analysis equipment

Official data

Feature	Description
Official name	Product Service Codes (PSC)
Maintained by	U.S. federal acquisition community / GSA PSC Manual
Purpose	Classifies what the government buys: products and services
Primary use	Federal procurement reporting, contract categorization, spend analysis
Code type	Mixed/unspecified

When do you need PSC B521?

1 Use PSC B521 when identifying the product or service category on a U.S. federal contract.

2 Use it when filtering opportunities or spending data in SAM.gov, FPDS, or USASpending.

3 Use it when comparing a procurement category against related NAICS industries or UNSPSC commodities.

4 Use it when a contracting workflow needs the purchased item classification rather than the supplier industry code.