PSC 5961

Overview

The Product Service Code system categorizes what the U.S. government buys so contract actions can be recorded, analyzed, and reported consistently across procurement systems. PSCs are entered in the Federal Procurement Data System and maintained through the official PSC Manual issued by GSA’s Federal Acquisition Service. This standardization supports spend visibility, oversight, and policy reporting across agencies. ¹

PSC 5961 covers semiconductor devices and associated hardware used as discrete electronic components. Per the PSC Manual, this class includes semiconductor assemblies; diodes and rectifiers; thyristors; transistors; and unitized semiconductors, with associated hardware other than sockets. Items that meet the definition of microcircuits or optoelectronic devices are excluded and instead map to other PSCs. ¹

What this PSC covers

• Discrete semiconductor diodes, including rectifying diodes and related rectifiers. ¹
• Transistors, including discrete bipolar and field‑effect devices. ¹
• Thyristors and other controlled rectifier devices (e.g., SCRs, triacs). ¹
• Unitized semiconductors and assembled device packages. ¹
• Semiconductor assemblies configured as component‑level building blocks. ¹
• Associated mounting or ancillary hardware specific to these devices, excluding sockets. ¹
• Boundary note: excludes microcircuits and optoelectronic devices, which are coded elsewhere. ¹

Related NAICS and PSC codes

Type	Code	Descriptor
PSC	5960	Electron Tubes and Associated Hardware
PSC	5962	Microcircuits, Electronic
PSC	5963	Electronic Modules
PSC	3670	Specialized Semiconductor, Microcircuit, and Printed Circuit Board Manufacturing Machinery

Coordinated acquisition and sourcing notes

• DoD coordinated acquisition: For FSC 5961, the Defense Supply Center Columbus (DLA Land and Maritime) is listed as the acquiring activity under DFARS PGI 208.7006 coordinated acquisition assignments. ²
• Sourcing controls: DLAD 9.202 directs contracting officers to apply procurement note M01 for qualification items when applicable to FSC 5961, establishing an order of precedence that prioritizes approved original component/equipment manufacturers and other qualified sources. ³

Adjacent code boundaries

• Versus PSC 5962: Items that constitute microcircuits (integrated circuits and other defined microcircuit forms) are coded under 5962, not 5961. Single discrete elements like diodes and transistors remain in 5961. ¹
• Versus PSC 5963: Modular plug‑in electronic assemblies meeting the PSC 5963 “electronic module” definition are excluded from 5961. ¹
• Versus PSC 5960: Vacuum electron tubes and their hardware are coded under 5960; 5961 is for semiconductor solid‑state devices. ¹

Frequently asked questions

• What does PSC 5961 include and exclude?

  • It includes discrete semiconductors such as diodes/rectifiers, thyristors, transistors, unitized semiconductors, and associated hardware except sockets. It excludes microcircuits and optoelectronic devices, which are classified under other PSCs. ¹

• Who manages coordinated acquisition for FSC 5961?

  • DFARS PGI 208.7006 lists Defense Supply Center Columbus (DLA Land and Maritime) as the acquiring activity for FSC 5961 under coordinated acquisition, consolidating buying to leverage expertise and supply posture. ²

• Are there qualification or sourcing restrictions for FSC 5961?

  • DLAD Part 9 policy includes procurement note M01 for qualification‑controlled items; contracting officers apply it when relevant to FSC 5961 buys to prioritize approved and qualified sources. Always check the solicitation for the specific note text and applicability. ³

• How should items that look like small ICs be coded?

  • If an item meets the PSC 5962 microcircuit definition (a high‑density circuit functioning as a single part), code it under 5962. If it is a single discrete element like a diode or transistor, it belongs in 5961. ¹

Useful resources

• G2X — PSC 5961 page: https://app.g2xchange.com/psc/5961
• Product and Service Codes (PSC) Manual — official code definitions, notes, and boundaries for FSC 59 classes including 5961. ¹
• DFARS Procedures, Guidance, and Information (PGI) 208.7006 — coordinated acquisition assignments for FSCs including 5961. ²
• Defense Logistics Agency Acquisition Directive (DLAD) Part 9 — policy and procurement note M01 usage for qualification‑controlled items that may apply to FSC 5961. ³

References

1. Acquisition.gov — Product and Service Codes (PSC) Manual. https://www.acquisition.gov/psc-manual
2. Acquisition.gov — PGI 208.7006 Coordinated acquisition assignments. https://www.acquisition.gov/dfars/pgi-208.7006-coordinated-acquisition-assignments
3. Acquisition.gov — DLAD Part 9: Contractor Qualifications (includes 9.202 and procurement notes). https://www.acquisition.gov/dlad/part-9-contractor-qualifications