PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

431729Transistor

Raytheon Technical Services Company · NSN 5961-00-409-3635 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-409-3635 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-409-3635. Primary manufacturer part number: 431729.
Features
  • Transistor — FSC 5961
  • Overall Diameter: 0.352 INCHES NOMINAL IN
  • Internal Junction Configuration: NPN
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Semiconductor Material: SILICON
  • Features Provided: HERMETICALLY SEALED CASE
  • Internal Configuration: JUNCTION CONTACT
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-409-3635, is classified within Federal Supply Class 5961 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Raytheon Technical Services Company. Government technical data includes 6 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-409-3635
Primary Part Number431729
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRaytheon Technical Services Company
StatusACTIVE
Overall Diameter0.352 INCHES NOMINAL IN
Internal Junction ConfigurationNPN
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 2
2940-00-467-33072N1990 INTERCHANGEABLE
Filter Element,intake Air Cleane
Caterpillar Inc Div Caterpillar Defense
5961-00-958-6747 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
431729 Raytheon Technical Services Company (USA)
2N1990 Microsemi Corp - Massachusetts (USA)
2N1990 Microsemi Corp.-Scottsdale Dba Microsemi (USA)
431729 Cae Usa Inc. (USA)
Related Parts
2940-00-467-3307INTERCHANGEABLE
FILTER ELEMENT,INTAKE AIR CLEANE
2N1990
5961-00-958-6747INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-409-3635?

NSN 5961-00-409-3635 is a Transistor, manufactured by Raytheon Technical Services Company, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-409-3635?

NSN 5961-00-409-3635 has 4 cross-referenced part numbers: 431729 (Raytheon Technical Services Company), 2N1990 (Microsemi Corp - Massachusetts), 2N1990 (Microsemi Corp.-Scottsdale Dba Microsemi), 431729 (Cae Usa Inc.).

What NSN replaces 5961-00-409-3635?

There are 2 known substitutes for 5961-00-409-3635: 2940-00-467-3307, 5961-00-958-6747. Verify interchangeability with system specifications before substitution.

What are the specifications of 431729?

Key specifications for 431729: Overall Diameter: 0.352 INCHES NOMINAL IN; Overall Length: 0.250 INCHES NOMINAL IN; Internal Junction Configuration: NPN; Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD. 7 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com