PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

2N4857Transistor

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-517-9416 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-517-9416 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-517-9416. Primary manufacturer part number: 2N4857.
Features
  • Transistor — FSC 5961
  • Precious Material: GOLD
  • Test Data Document: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Precious Material and Location: TERMINAL SURFACE OPTION GOLD
  • Internal Configuration: FIELD EFFECT
  • Current Rating Per Characteristic: 50.00 MILLIAMPERES MAXIMUM GATE CURRENT
  • Mounting Method: TERMINAL
  • Terminal Type and Quantity: 3 UNINSULATED WIRE LEAD
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-517-9416, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-517-9416
Primary Part Number2N4857
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Precious MaterialGOLD
Test Data Document81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Precious Material and LocationTERMINAL SURFACE OPTION GOLD
Internal ConfigurationFIELD EFFECT
Current Rating Per Characteristic50.00 MILLIAMPERES MAXIMUM GATE CURRENT
Mounting MethodTERMINAL
Terminal Type and Quantity3 UNINSULATED WIRE LEAD
Terminal Circle Diameter0.100 INCHES NOMINAL IN
Maximum Operating Temp Per Measurement Point200.0 CELSIUS JUNCTION DEGC
Semiconductor MaterialSILICON
Voltage Rating in Volts Per Characteristic40.0 MAXIMUM DRAIN TO GATE VOLTAGE AND 40.0 MAXIMUM DRAIN TO SOURCE VOLTAGE AND -40.0 MAXIMUM GATE TO SOURCE VOLTAGE
Electrode Internally-Electrically Connected to CaseGATE
Specification/standard Data81349-MIL-S-19500/385 GOVERNMENT SPECIFICATION
Terminal Length0.500 INCHES MINIMUM IN
Power Rating Per Characteristic1.8 WATTS MAXIMUM TOTAL POWER DISSIPATION
Overall Diameter0.209 INCHES MINIMUM AND 0.230 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-097-7487 INTERCHANGEABLE
Transistor
5961-00-146-0247 INTERCHANGEABLE
Transistor
5961-00-160-5542 INTERCHANGEABLE
Transistor
5961-00-230-7559 INTERCHANGEABLE
Transistor
5961-00-243-9159 INTERCHANGEABLE
Transistor
5961-00-403-5368 INTERCHANGEABLE
Transistor
5961-00-421-3040 INTERCHANGEABLE
Transistor
5961-00-486-7025 INTERCHANGEABLE
Transistor
5961-00-493-5250 INTERCHANGEABLE
Transistor
5961-00-757-6526 INTERCHANGEABLE
Transistor
Cross-Reference Index
Part NumberManufacturer
2N4857 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-19500/385 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-19500/385 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5961PL0935781 Jednolity Indeks Materialowy - Uniform Material Index (POL)
3184661 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
JANTX2N4857 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
584561-1 Raytheon Company Div Corp (USA)
418892-8 Raytheon Company Dba Raytheon (USA)
584561+1 Raytheon Company Div Corp (USA)
JANTX2N4857A Adelco Elektronik Gmbh (DEU)
163969 Scientific Atlanta Inc (USA)
JANTX2N4857 Adelco Elektronik Gmbh (DEU)
Related Parts
5961-00-097-7487INTERCHANGEABLE
TRANSISTOR
5961-00-146-0247INTERCHANGEABLE
TRANSISTOR
5961-00-160-5542INTERCHANGEABLE
TRANSISTOR
5961-00-230-7559INTERCHANGEABLE
TRANSISTOR
5961-00-243-9159INTERCHANGEABLE
TRANSISTOR
5961-00-403-5368INTERCHANGEABLE
TRANSISTOR
5961-00-421-3040INTERCHANGEABLE
TRANSISTOR
5961-00-486-7025INTERCHANGEABLE
TRANSISTOR
5961-00-493-5250INTERCHANGEABLE
TRANSISTOR
5961-00-757-6526INTERCHANGEABLE
TRANSISTOR
5961-00-777-3188INTERCHANGEABLE
TRANSISTOR
5961-01-012-9314INTERCHANGEABLE
TRANSISTOR

Frequently Asked Questions

What is NSN 5961-00-517-9416?

NSN 5961-00-517-9416 is a Transistor, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-517-9416?

NSN 5961-00-517-9416 has 12 cross-referenced part numbers: 2N4857 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-S-19500/385 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-PRF-19500/385 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 5961PL0935781 (Jednolity Indeks Materialowy - Uniform Material Index), 3184661 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div) and 7 more.

What NSN replaces 5961-00-517-9416?

There are 12 known substitutes for 5961-00-517-9416: 5961-00-097-7487, 5961-00-146-0247, 5961-00-160-5542 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 2N4857?

Key specifications for 2N4857: Precious Material: GOLD; Test Data Document: 81349-MIL-S-19500 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).; Precious Material and Location: TERMINAL SURFACE OPTION GOLD; Internal Configuration: FIELD EFFECT. 17 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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