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PSC AD91

Federal procurement snapshot for PSC AD91.

Award Count: 67,075
Obligations: $16,332,974,157.86

PSC Overview

PSC Code
AD91
Description
OTHER DEFENSE (BASIC)
Explanation
PSC AD91 points to a basic research category, which usually means early-stage scientific or technical work focused on foundational knowledge rather than operational deployment. This is useful when separating initial research from later development and applied work.
Award Count
67,075
Total Obligations
$16,332,974,157.86

Analyst Note

This PSC item page gives a direct reference view for one Product Service Code from FPDS data.

Why It Matters

PSC codes are used to classify what the government bought, making them useful for market segmentation and procurement analysis.

Methodology

This page is derived from the PSC index artifact generated from grouped FPDS award data.

How to Use This PSC

  • Use PSC AD91 as a category filter when analyzing federal contract spending.
  • Compare agencies and vendors operating within the same PSC classification.
  • Track award volume and obligations for this procurement category over time in FPDS Query.
  • Use this code together with NAICS, agency, and date filters to narrow the market view.