PSC 3645

Overview

The Product Service Code (PSC) is a governmentwide taxonomy used to classify the products and services the U.S. government buys, supporting consistent entry in systems such as FPDS and enabling analysis and reporting of spend. The PSC Manual is the governing source for definitions and usage in federal reporting. ¹

PSC 3645 is a product class within Federal Supply Group 36 (Special Industry Machinery) titled “Leather Tanning and Leather Working Industries Machinery.” It identifies procurements for industrial machinery used in leather processing and leather‑working manufacturing operations; the current PSC Manual lists the class title and does not provide specific inclusions or exclusions. Not specified by official sources. ¹

What this PSC covers

• Industrial machinery dedicated to leather tanning processes within manufacturing facilities. ¹
• Equipment used by leather‑working industries to transform hides into finished leather materials and components. ¹
• Specialized machinery supporting leather shaping, forming, and finishing stages within industrial production lines. ¹
• Production‑oriented machines specific to leather operations, as distinct from general metalworking or woodworking machine tools. ¹
• Items reported as products (not services) under Group 36, Special Industry Machinery, when the predominant end item is leather‑industry machinery. ¹
• Coverage determined by the PSC assigned in FPDS based on “what was bought,” per PSC Manual guidance. ¹

Related NAICS and PSC codes

Assignment notes and adjacent classes

• FSC Group 36 contains multiple manufacturing machinery classes; PSC 3645 sits alongside classes such as 3625 (Textile Industries Machinery), 3640 (Tobacco Manufacturing Machinery), and 3650 (Chemical and Pharmaceutical Products Manufacturing Machinery). ¹
• Shoemaking machinery is explicitly included under 3695 “Miscellaneous Special Industry Machinery,” not under 3645. ¹
• Related service PSCs commonly paired with Group 36 products include J036 (MRO), N036 (installation), K036 (modification), L036 (technical representative), and W036 (lease/rental). ¹

DoD trade agreements context

Under DFARS 225.401‑70, acquisitions of end products in Product Service Group 36 (Special Industry Machinery, except 3690) are covered by trade agreements when the value meets the applicable threshold and no exception applies; as a Group 36 product class, PSC 3645 end items may therefore fall under these rules when threshold conditions are met. ²

FPDS reporting notes

The PSC is entered in FPDS data element 8A to identify the predominant product or service purchased; environmental attributes (if applicable) are recorded in element 8L. The PSC Manual is the governing source for determining the correct code to represent “what was bought.” ¹

Frequently asked questions

• What exactly does PSC 3645 represent?
  PSC 3645 is the code for “Leather Tanning and Leather Working Industries Machinery” within FSC Group 36. The PSC Manual lists the class title and does not add detailed inclusions or exclusions. Not specified by official sources. ¹

• How is PSC 3645 different from PSC 3695 or PSC 3520?
  Shoemaking machinery is covered in 3695, while shoe sewing machines fall under 3520. PSC 3645 is specifically for leather tanning and leather‑working industrial machinery, separate from those adjacent classes. ¹

• Which service PSCs are typically used for installation or maintenance of leather‑industry machinery?
  Buyers commonly pair Group 36 products with service PSCs: J036 for maintenance/repair, N036 for installation, K036 for modification, L036 for technical representative services, and W036 for lease/rental. ¹

• Are PSC 3645 end products subject to DoD Trade Agreements thresholds?
  DFARS 225.401‑70 lists Product Service Group 36—Special Industry Machinery (except 3690)—as covered when the acquisition value meets the threshold and no exception applies, so PSC 3645 items may be covered accordingly. ²

Useful resources

• G2X — PSC 3645 overview: https://app.g2xchange.com/psc/3645
• PSC Manual, April 2025 edition (PDF): https://login.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf
• DFARS 225.401‑70 — End products subject to trade agreements: https://www.acquisition.gov/dfars/225.401-70-end-products-subject-trade-agreements
• PSC April 2025.xlsx (current PSC data workbook): https://www.acquisition.gov/content/psc-april-2025.xlsx

References

1. General Services Administration, Product and Service Codes (PSC) Manual, April 2025 edition (PDF). https://login.acquisition.gov/sites/default/files/manual/PSC%20Manual%20April%202025.pdf
2. Defense Federal Acquisition Regulation Supplement (DFARS) 225.401‑70 End products subject to trade agreements. https://www.acquisition.gov/dfars/225.401-70-end-products-subject-trade-agreements