PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

A531A056-101Semiconductor Device,diode

Kearfott Corporation Div Guidance and Navigation Division · NSN 5961-01-040-6423 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-01-040-6423 — this item is cataloged by the U.S. Government under National Stock Number 5961-01-040-6423. Primary manufacturer part number: A531A056-101.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: SILICON SEMICONDUCTOR
  • Test Data Document: 81349-MIL-PRF-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.).
  • Current Rating Per Characteristic: 400.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
  • Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-4
  • Nominal Thread Size: 0.190 INCHES IN
  • Mounting Method: THREADED STUD(S)
  • Electrode Internally-Electrically Connected to Case: CATHODE
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 5961-01-040-6423, 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 Kearfott Corporation Div Guidance and Navigation Division. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 15 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-01-040-6423
Primary Part NumberA531A056-101
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerKearfott Corporation Div Guidance and Navigation Division
StatusCANCELLED
MaterialSILICON SEMICONDUCTOR
Test Data Document81349-MIL-PRF-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.).
Current Rating Per Characteristic400.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
Joint Electronic Device Engineering Council/jedec/case Outline DesignationDO-4
Nominal Thread Size0.190 INCHES IN
Mounting MethodTHREADED STUD(S)
Electrode Internally-Electrically Connected to CaseCATHODE
Voltage Rating in Volts Per Characteristic150.0 MAXIMUM REVERSE VOLTAGE, INSTANTANEOUS AND 150.0 MAXIMUM WORKING PEAK REVERSE VOLTAGE
Mounting Facility Quantity1
Criticality Code JustificationFEAT
Maximum Operating Temp Per Measurement Point175.0 CELSIUS JUNCTION DEGC
Overall Width Across Flats0.424 INCHES MINIMUM AND 0.437 INCHES MAXIMUM IN
Thread Series DesignatorUNF
Specification/standard Data81349-MIL-PRF-19500/478 GOVERNMENT SPECIFICATION
Terminal Type and Quantity1 THREADED STUD AND 1 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5961-00-261-7119 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-261-7120 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-013-0683 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-044-5845 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-058-5087 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-062-0666 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-069-9542 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-077-2739 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-085-0517 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-097-4349 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
A531A056-101 Kearfott Corporation Div Guidance and Navigation Division (USA)
RELEASE6377 Electronic Industries Association
7118862-1 Litton Systems Inc Guidance and Control Systems Div (USA)
28821-1355404 Ferranti International Plc (GBR)
1N5815 Electronic Industries Association
353-9019-320 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
MIL-PRF-19500/478 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
4034972-502 Honeywell International Inc. Dba Honeywell International (USA)
1N5816 Micro Uspd Inc (USA)
1N5815 Micro Uspd Inc (USA)
JANTX1N5816 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
28821-1355404 Esuk Aerospace and Simulation Ltd (GBR)
450904-7437 Northrop Grumman Litef Gmbh (DEU)
PD2710 Trw Electronics and Defense Sector Rf Devices (USA)
20-00903-020 Raytheon Company (USA)
Related Parts
5961-00-261-7119INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-261-7120INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-013-0683INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-044-5845INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-058-5087INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-062-0666INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-069-9542INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-077-2739INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-085-0517INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-097-4349INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-102-6561INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-117-4116INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-01-040-6423?

NSN 5961-01-040-6423 is a Semiconductor Device,diode, manufactured by Kearfott Corporation Div Guidance and Navigation Division, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-01-040-6423?

NSN 5961-01-040-6423 has 15 cross-referenced part numbers: A531A056-101 (Kearfott Corporation Div Guidance and Navigation Division), RELEASE6377 (Electronic Industries Association), 7118862-1 (Litton Systems Inc Guidance and Control Systems Div), 28821-1355404 (Ferranti International Plc), 1N5815 (Electronic Industries Association) and 10 more.

What NSN replaces 5961-01-040-6423?

There are 12 known substitutes for 5961-01-040-6423: 5961-00-261-7119, 5961-00-261-7120, 5961-01-013-0683 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of A531A056-101?

Key specifications for A531A056-101: Material: SILICON SEMICONDUCTOR; Test Data Document: 81349-MIL-PRF-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.).; Current Rating Per Characteristic: 400.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT; Joint Electronic Device Engineering Council/jedec/case Outline Designation: DO-4. 18 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-01-040-6423 still in active supply?

NSN 5961-01-040-6423 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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