PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

ECG123ATransistor

General Dynamics Mission Systems, Inc. · NSN 5961-00-336-9367 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-336-9367 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-336-9367. Primary manufacturer part number: ECG123A.
Features
  • Transistor — FSC 5961
  • Semiconductor Material: SILICON
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
  • Overall Diameter: 0.220 INCHES NOMINAL IN
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Voltage Rating in Volts Per Characteristic: 55.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 40.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-336-9367, 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 General Dynamics Mission Systems, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-336-9367
Primary Part NumberECG123A
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerGeneral Dynamics Mission Systems, Inc.
StatusCANCELLED
Semiconductor MaterialSILICON
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Overall Diameter0.220 INCHES NOMINAL IN
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Terminal Length0.500 INCHES MINIMUM IN
Voltage Rating in Volts Per Characteristic55.0 MAXIMUM COLLECTOR TO BASE VOLTAGE/STATIC/EMITTER OPEN AND 40.0 MAXIMUM COLLECTOR TO EMITTER VOLTAGE/STATIC/BASE OPEN AND 6.0 MAXIMUM EMITTER TO BASE VOLTAGE, STATIC, COLLECTOR OPEN
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Power Rating Per Characteristic500.0 MILLIWATTS MAXIMUM COLLECTOR POWER DISSIPATION
Mounting MethodTERMINAL
Current Rating Per Characteristic600.00 MILLIAMPERES MAXIMUM COLLECTOR CURRENT, DC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 7
4210-00-288-8268 INTERCHANGEABLE
Extinguisher,fire
6720-00-329-3190123A INTERCHANGEABLE
Camera,still Picture
Keysight Technologies Inc
5360-00-408-0289123A INTERCHANGEABLE
Spring,clutch
Follett Time Recording Co Inc
6625-00-633-6247123A INTERCHANGEABLE
Test Set,electron Tube
Hickok Waekon Llc
5340-01-015-96471023A INTERCHANGEABLE
Key Blank
Ilco Unican Corp Dba Wolf Sales
3920-01-106-2729HT-108-70 INTERCHANGEABLE
Truck,hand
Atlas Welding Accessories, Inc.
4820-01-524-4309PLC-13090 INTERCHANGEABLE
Valve,check
Admiral Valve Llc Dba Cpv Manufacturing
Cross-Reference Index
Part NumberManufacturer
ECG123A PRIMARY General Dynamics Mission Systems, Inc. (USA)
NTE123A Nte Electronics, Inc (USA)
X16N2526 General Electric Co Semi-Conductor Products Dept (USA)
ECG123A Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company (USA)
123A Nte Electronics, Inc (USA)
121-972-01 Zenith Electronics Corporation (USA)
Related Parts
4210-00-288-8268INTERCHANGEABLE
EXTINGUISHER,FIRE
6720-00-329-3190INTERCHANGEABLE
CAMERA,STILL PICTURE
123A
5360-00-408-0289INTERCHANGEABLE
SPRING,CLUTCH
123A
6625-00-633-6247INTERCHANGEABLE
TEST SET,ELECTRON TUBE
123A
5340-01-015-9647INTERCHANGEABLE
KEY BLANK
1023A
3920-01-106-2729INTERCHANGEABLE
TRUCK,HAND
HT-108-70
4820-01-524-4309INTERCHANGEABLE
VALVE,CHECK
PLC-13090

Frequently Asked Questions

What is NSN 5961-00-336-9367?

NSN 5961-00-336-9367 is a Transistor, manufactured by General Dynamics Mission Systems, Inc., classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-336-9367?

NSN 5961-00-336-9367 has 6 cross-referenced part numbers: ECG123A (General Dynamics Mission Systems, Inc.), NTE123A (Nte Electronics, Inc), X16N2526 (General Electric Co Semi-Conductor Products Dept), ECG123A (Philips Electronics North America Corporation Dba Philips Lighting Div Philips Lighting Company), 123A (Nte Electronics, Inc) and 1 more.

What NSN replaces 5961-00-336-9367?

There are 7 known substitutes for 5961-00-336-9367: 4210-00-288-8268, 6720-00-329-3190, 5360-00-408-0289 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of ECG123A?

Key specifications for ECG123A: Semiconductor Material: SILICON; Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD; Overall Diameter: 0.220 INCHES NOMINAL IN; Terminal Circle Diameter: 0.100 INCHES NOMINAL IN. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-336-9367 still in active supply?

NSN 5961-00-336-9367 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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