PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2635054Transistor

Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier · NSN 5961-00-888-5458 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-888-5458 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-888-5458. Primary manufacturer part number: 2635054.
Features
  • Transistor — FSC 5961
  • Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD
  • Overall Diameter: 0.210 INCHES NOMINAL IN
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Material: GLASS ENCLOSURE
  • Internal Configuration: JUNCTION CONTACT
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: TO-18
  • Voltage Rating in Volts Per Characteristic: -60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND -50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND -50.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Applications
  • Applications requiring Glass Enclosure construction
General Description

The Transistor, cataloged under National Stock Number 5961-00-888-5458, 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 Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-888-5458
Primary Part Number2635054
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerNavair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
StatusCANCELLED
Terminal Type and Quantity4 UNINSULATED WIRE LEAD
Overall Diameter0.210 INCHES NOMINAL IN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
MaterialGLASS ENCLOSURE
Internal ConfigurationJUNCTION CONTACT
Joint Electronic Device Engineering Council/jedec/case Outline DesignationTO-18
Voltage Rating in Volts Per Characteristic-60.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-BASE, EMITTER OPEN AND -50.0 MAXIMUM BREAKDOWN VOLTAGE, COLLECTOR-TO-EMITTER, BASE OPEN AND -50.0 MAXIMUM BREAKDOWN VOLTAGE, EMITTER-TO-BASE, COLLECTOR OPEN
Terminal Length1.500 INCHES MINIMUM IN
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Mounting MethodTERMINAL
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Test Data Document10001-2635054 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5962-00-936-9518972162-52 INTERCHANGEABLE
Microcircuit,memory
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5930-01-424-7724C1146 INTERCHANGEABLE
Switch,thermostatic
Lockheed Martin Corporation Div Lockheed Martin Aeronautics Company
5985-01-596-2970 INTERCHANGEABLE
Coupler,directional
Cross-Reference Index
Part NumberManufacturer
C1-146 Crystalonics, Inc. (USA)
3N136 Crystalonics, Inc. (USA)
CI-146 Crystalonics, Inc. (USA)
2635054 PRIMARY Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier (USA)
NAVORDDWG2635054 Crystalonics, Inc. (USA)
Related Parts
5962-00-936-9518INTERCHANGEABLE
MICROCIRCUIT,MEMORY
972162-52
5930-01-424-7724INTERCHANGEABLE
SWITCH,THERMOSTATIC
C1146
5985-01-596-2970INTERCHANGEABLE
COUPLER,DIRECTIONAL

Frequently Asked Questions

What is NSN 5961-00-888-5458?

NSN 5961-00-888-5458 is a Transistor, manufactured by Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-888-5458?

NSN 5961-00-888-5458 has 5 cross-referenced part numbers: C1-146 (Crystalonics, Inc.), 3N136 (Crystalonics, Inc.), CI-146 (Crystalonics, Inc.), 2635054 (Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier), NAVORDDWG2635054 (Crystalonics, Inc.).

What NSN replaces 5961-00-888-5458?

There are 3 known substitutes for 5961-00-888-5458: 5962-00-936-9518, 5930-01-424-7724, 5985-01-596-2970. Verify interchangeability with system specifications before substitution.

What are the specifications of 2635054?

Key specifications for 2635054: Terminal Type and Quantity: 4 UNINSULATED WIRE LEAD; Overall Diameter: 0.210 INCHES NOMINAL IN; Overall Length: 0.210 INCHES MAXIMUM IN; Terminal Circle Diameter: 0.100 INCHES NOMINAL IN. 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-888-5458 still in active supply?

NSN 5961-00-888-5458 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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