PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

9999-5005-001Transistor

Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems · NSN 5961-01-049-0895 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-049-0895 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-049-0895. Primary manufacturer part number: 9999-5005-001.
Features
  • Transistor — FSC 5961
  • Internal Configuration: FIELD EFFECT
  • Power Rating Per Characteristic: 300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
  • Terminal Circle Diameter: 0.100 INCHES NOMINAL IN
  • Overall Diameter: 0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
  • Terminal Length: 0.500 INCHES MINIMUM IN
  • Voltage Rating in Volts Per Characteristic: 40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -40.0 MAXIMUM REVERSE GATE TO SOURCE VOLTAGE
  • Features Provided: HERMETICALLY SEALED CASE
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-01-049-0895, 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 Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems. Government technical data includes 13 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 3 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-01-049-0895
Primary Part Number9999-5005-001
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerUndersea Sensor Systems Inc Div Ultra Sonobuoy Systems
StatusACTIVE
Internal ConfigurationFIELD EFFECT
Power Rating Per Characteristic300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Terminal Length0.500 INCHES MINIMUM IN
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -40.0 MAXIMUM REVERSE GATE TO SOURCE VOLTAGE
Features ProvidedHERMETICALLY SEALED CASE
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Mounting MethodTERMINAL
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM FORWARD GATE CURRENT
Semiconductor MaterialSILICON
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Test Data Document50027-9999-5005 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 StatusACTIVE
HAZMATNo
Verified Substitutes 6
5961-00-175-7295 INTERCHANGEABLE
Transistor
5961-00-400-09052N4392 INTERCHANGEABLE
Transistor
Siliconix Incorporated Div Siliconix
5961-00-824-52022N4392 INTERCHANGEABLE
Transistor
Solitron Devices, Inc.
5961-01-138-8988AS144265 INTERCHANGEABLE
Transistor
Lockheed Martin Corp Electronics and Missiles Div
5961-01-186-9139151-1022-00 INTERCHANGEABLE
Transistor
Tektronix, Inc.
5961-01-216-205044-052009-02 INTERCHANGEABLE
Transistor
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp Div Multiple
Cross-Reference Index
Part NumberManufacturer
9999-5005-001 PRIMARY Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems (USA)
9999-5005-001 Texas Instruments Incorporated (USA)
9999-5005-001 Siliconix Incorporated Div Siliconix (USA)
2N4392 Texas Instruments Incorporated (USA)
2N4392 Siliconix Incorporated Div Siliconix (USA)
Related Parts
5961-00-175-7295INTERCHANGEABLE
TRANSISTOR
5961-00-400-0905INTERCHANGEABLE
TRANSISTOR
2N4392
5961-00-824-5202INTERCHANGEABLE
TRANSISTOR
2N4392
5961-01-138-8988INTERCHANGEABLE
TRANSISTOR
AS144265
5961-01-186-9139INTERCHANGEABLE
TRANSISTOR
151-1022-00
5961-01-216-2050INTERCHANGEABLE
TRANSISTOR
44-052009-02

Frequently Asked Questions

What is NSN 5961-01-049-0895?

NSN 5961-01-049-0895 is a Transistor, manufactured by Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-049-0895?

NSN 5961-01-049-0895 has 5 cross-referenced part numbers: 9999-5005-001 (Undersea Sensor Systems Inc Div Ultra Sonobuoy Systems), 9999-5005-001 (Texas Instruments Incorporated), 9999-5005-001 (Siliconix Incorporated Div Siliconix), 2N4392 (Texas Instruments Incorporated), 2N4392 (Siliconix Incorporated Div Siliconix).

What NSN replaces 5961-01-049-0895?

There are 6 known substitutes for 5961-01-049-0895: 5961-00-175-7295, 5961-00-400-0905, 5961-00-824-5202 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 9999-5005-001?

Key specifications for 9999-5005-001: Internal Configuration: FIELD EFFECT; Power Rating Per Characteristic: 300.0 MILLIWATTS MAXIMUM TOTAL POWER DISSIPATION; Overall Length: 0.210 INCHES MAXIMUM IN; Terminal Circle Diameter: 0.100 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

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