PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N4251Semiconductor Device,diode

Stellant Systems Inc · NSN 5961-01-006-8434 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-006-8434 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-006-8434. Primary manufacturer part number: 1N4251.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: SILICON SEMICONDUCTOR
  • 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.).
  • Specification/standard Data: 81349-MIL-S-19500/429 GOVERNMENT SPECIFICATION
  • Material: GLASS ENCLOSURE
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • Voltage Rating in Volts Per Characteristic: 1000.0 MAXIMUM REVERSE VOLTAGE, INSTANTANEOUS AND 1000.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS JUNCTION DEGC
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Silicon Semiconductor construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-01-006-8434, 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 Stellant Systems Inc. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 5 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
NSN5961-01-006-8434
Primary Part Number1N4251
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerStellant Systems Inc
StatusACTIVE
MaterialSILICON SEMICONDUCTOR
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.).
Specification/standard Data81349-MIL-S-19500/429 GOVERNMENT SPECIFICATION
MaterialGLASS ENCLOSURE
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Voltage Rating in Volts Per Characteristic1000.0 MAXIMUM REVERSE VOLTAGE, INSTANTANEOUS AND 1000.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION DEGC
Mounting MethodTERMINAL
Overall Diameter0.065 INCHES MINIMUM AND 0.110 INCHES MAXIMUM IN
Terminal Length1.000 INCHES MINIMUM AND 1.300 INCHES MAXIMUM IN
Current Rating Per Characteristic25.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5961-00-105-7731 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-165-2903 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-165-2904 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-349-6200 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-404-9136 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-425-9815 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-426-9613 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-451-7408 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-476-7855 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-761-7216 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
1N4251 Stellant Systems Inc (USA)
353-9019-150 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
99114860 Thales Sa (FRA)
JANTX1N5623 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JAN1N4586 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-19500/365 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-PRF-19500/429 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-S-19500/429 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
G492096-610 Raytheon Company Div Corp (USA)
Related Parts
5961-00-105-7731INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-165-2903INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-165-2904INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-349-6200INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-404-9136INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-425-9815INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-426-9613INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-451-7408INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-476-7855INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-761-7216INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-772-7706INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-023-9459INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-01-006-8434?

NSN 5961-01-006-8434 is a Semiconductor Device,diode, manufactured by Stellant Systems Inc, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-01-006-8434?

NSN 5961-01-006-8434 has 9 cross-referenced part numbers: 1N4251 (Stellant Systems Inc), 353-9019-150 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), 99114860 (Thales Sa), JANTX1N5623 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JAN1N4586 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 5961-01-006-8434?

There are 12 known substitutes for 5961-01-006-8434: 5961-00-105-7731, 5961-00-165-2903, 5961-00-165-2904 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N4251?

Key specifications for 1N4251: Material: SILICON SEMICONDUCTOR; 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.).; Specification/standard Data: 81349-MIL-S-19500/429 GOVERNMENT SPECIFICATION; Material: GLASS ENCLOSURE. 12 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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