PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F429Transistor

Nautel Maine Inc · NSN 5961-00-850-8921 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-850-8921 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-850-8921. Primary manufacturer part number: F429.
Features
  • Transistor — FSC 5961
  • Features Provided: HERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 250.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
  • Specification/standard Data: 80131-RELEASE5109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
  • Voltage Rating in Volts Per Characteristic: 250.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 225.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
  • Maximum Operating Temp Per Measurement Point: 200.0 CELSIUS JUNCTION DEGC
  • Mounting Method: UNTHREADED HOLE(S)
  • Semiconductor Material: SILICON
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-850-8921, 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 Nautel Maine Inc. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 19 commercial cross-references from 16 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-850-8921
Primary Part NumberF429
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerNautel Maine Inc
StatusCANCELLED
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic500.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 250.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Specification/standard Data80131-RELEASE5109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION
Voltage Rating in Volts Per Characteristic250.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 225.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Mounting MethodUNTHREADED HOLE(S)
Semiconductor MaterialSILICON
Mounting Facility Quantity2
Terminal Type and Quantity1 CASE AND 2 UNINSULATED WIRE LEAD
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Overall Diameter0.620 INCHES MAXIMUM IN
Power Rating Per Characteristic20.0 WATTS MAXIMUM COLLECTOR POWER DISSIPATION
Internal ConfigurationJUNCTION CONTACT
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5961-00-153-7302363167-1 INTERCHANGEABLE
Transistor
Raytheon Company Dba Raytheon Co
5961-00-835-6138 INTERCHANGEABLE
Transistor
5961-00-876-66061854-0253 INTERCHANGEABLE
Transistor
Keysight Technologies Inc
5961-00-900-9811 INTERCHANGEABLE
Transistor
5961-00-927-50421853-0052 INTERCHANGEABLE
Transistor
Keysight Technologies Inc
5961-00-938-5100 INTERCHANGEABLE
Transistor
5977-01-325-9889F4-29-2 INTERCHANGEABLE
Holder,electrical Contact Brush
Parker Hannifin Corp Dba Pneutronics
5305-01-487-5919062021 INTERCHANGEABLE
Screw,shoulder
L3 Technologies, Inc. Div L3 Keo
2910-01-547-559811-7726 INTERCHANGEABLE
Filter,fluid
Thermo King Corporation Dba Phoenix Global Distirbution.
Cross-Reference Index
Part NumberManufacturer
F429 Nautel Maine Inc (USA)
2N3738 On Semiconductor Corporation (USA)
RELEASE5109 Electronic Industries Association
062-021 Trilithic, Inc. (USA)
1854-0237 Hewlett-Packard Company Dba HP (USA)
91226069 Thales Deutschland Gmbh (DEU)
1177-26 Bae Systems Information and Electronic Systems Integration Inc. (USA)
2N3738 Freescale Semiconductor, Inc. (USA)
014-948 Ampex Systems Corp (USA)
2N3738 Electronic Industries Association
372908-1 Sypris Electronics, Llc (USA)
1854-0237 Keysight Technologies, Inc. (USA)
A4L470521 Gems Sensors & Controls (GBR)
9324-013130 Gossen Metrawatt Gmbh Div Gmc-I Gossen-Metrawatt Gmbh (DEU)
SJ4168 Freescale Semiconductor, Inc. (USA)
L470521 Gems Sensors & Controls (GBR)
014-948 Ampex Data Systems Corporation Dba Ampex Intelligent Systems (USA)
91226069 Thales Sa (FRA)
1854-0237 Keysight Technologies Inc (USA)
Related Parts
5961-00-153-7302INTERCHANGEABLE
TRANSISTOR
363167-1
5961-00-835-6138INTERCHANGEABLE
TRANSISTOR
5961-00-876-6606INTERCHANGEABLE
TRANSISTOR
1854-0253
5961-00-900-9811INTERCHANGEABLE
TRANSISTOR
5961-00-927-5042INTERCHANGEABLE
TRANSISTOR
1853-0052
5961-00-938-5100INTERCHANGEABLE
TRANSISTOR
5977-01-325-9889INTERCHANGEABLE
HOLDER,ELECTRICAL CONTACT BRUSH
F4-29-2
5305-01-487-5919INTERCHANGEABLE
SCREW,SHOULDER
062021
2910-01-547-5598INTERCHANGEABLE
FILTER,FLUID
11-7726

Frequently Asked Questions

What is NSN 5961-00-850-8921?

NSN 5961-00-850-8921 is a Transistor, manufactured by Nautel Maine Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-850-8921?

NSN 5961-00-850-8921 has 19 cross-referenced part numbers: F429 (Nautel Maine Inc), 2N3738 (On Semiconductor Corporation), RELEASE5109 (Electronic Industries Association), 062-021 (Trilithic, Inc.), 1854-0237 (Hewlett-Packard Company Dba HP) and 14 more.

What NSN replaces 5961-00-850-8921?

There are 9 known substitutes for 5961-00-850-8921: 5961-00-153-7302, 5961-00-835-6138, 5961-00-876-6606 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F429?

Key specifications for F429: Features Provided: HERMETICALLY SEALED CASE; Current Rating Per Characteristic: 500.00 MILLIAMPERES MAXIMUM BASE CURRENT, DC AND 250.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC; Specification/standard Data: 80131-RELEASE5109 PROFESSIONAL/INDUSTRIAL ASSOCIATION SPECIFICATION; Voltage Rating in Volts Per Characteristic: 250.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND 225.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND 6.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN. 15 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-850-8921 still in active supply?

NSN 5961-00-850-8921 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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