PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

221448Semiconductor Device,diode

Astronics Test Systems Inc · NSN 5961-00-813-5736 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-813-5736 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-813-5736. Primary manufacturer part number: 221448.
Features
  • Semiconductor Device,diode — FSC 5961
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD
  • 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.).
  • Material: SILICON SEMICONDUCTOR
  • Mounting Method: THREADED STUD(S)
  • Overall Width Across Flats: 0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
  • Current Rating Per Characteristic: 3.75 AMPERES MAXIMUM PEAK REVERSE SURGE CURRENT
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS CASE 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 5961-00-813-5736, 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 Astronics Test Systems Inc. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 5 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-813-5736
Primary Part Number221448
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAstronics Test Systems Inc
StatusCANCELLED
Terminal Type and Quantity1 TAB, SOLDER LUG AND 1 THREADED STUD
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.).
MaterialSILICON SEMICONDUCTOR
Mounting MethodTHREADED STUD(S)
Overall Width Across Flats0.423 INCHES MINIMUM AND 0.438 INCHES MAXIMUM IN
Current Rating Per Characteristic3.75 AMPERES MAXIMUM PEAK REVERSE SURGE CURRENT
Maximum Operating Temp Per Measurement Point175.0 CELSIUS CASE DEGC
Nominal Thread Size0.190 INCHES IN
Features ProvidedHERMETICALLY SEALED CASE
Electrode Internally-Electrically Connected to CaseANODE
Voltage Rating in Volts Per Characteristic13.0 MAXIMUM NOMINAL REGULATOR VOLTAGE
Power Rating Per Characteristic10.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Mounting Facility Quantity1
Thread Series DesignatorUNF
Specification/standard Data81349-MIL-S-19500/124 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 5
4730-00-177-1818221448 INTERCHANGEABLE
Coupling Half,quick Disconnect
Prc-Desoto International, Inc.
5961-00-401-2945 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-689-9091 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-882-52812157086-5REV3 INTERCHANGEABLE
Semiconductor Device,diode
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5961-01-179-544210069-1216 INTERCHANGEABLE
Semiconductor Device,diode
L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications
Cross-Reference Index
Part NumberManufacturer
221448 Astronics Test Systems Inc (USA)
5M.5536.220.91 Hensoldt Sensors Gmbh Div Seps (DEU)
1N2977A Electronic Industries Association
1N2977 Electronic Industries Association
JAN1N2977B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10M132 Motorola Inc. Dba Integrated Information Systems Group (USA)
10M13Z Motorola Inc. Dba Integrated Information Systems Group (USA)
MILS19500-124 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1N2977B Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1N2977BA Adelco Elektronik Gmbh (DEU)
JAN1N2977BA Adelco Elektronik Gmbh (DEU)
Related Parts
4730-00-177-1818INTERCHANGEABLE
COUPLING HALF,QUICK DISCONNECT
221448
5961-00-401-2945INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-689-9091INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-882-5281INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
2157086-5REV3
5961-01-179-5442INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
10069-1216

Frequently Asked Questions

What is NSN 5961-00-813-5736?

NSN 5961-00-813-5736 is a Semiconductor Device,diode, manufactured by Astronics Test Systems Inc, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-813-5736?

NSN 5961-00-813-5736 has 11 cross-referenced part numbers: 221448 (Astronics Test Systems Inc), 5M.5536.220.91 (Hensoldt Sensors Gmbh Div Seps), 1N2977A (Electronic Industries Association), 1N2977 (Electronic Industries Association), JAN1N2977B (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 6 more.

What NSN replaces 5961-00-813-5736?

There are 5 known substitutes for 5961-00-813-5736: 4730-00-177-1818, 5961-00-401-2945, 5961-00-689-9091 and 2 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 221448?

Key specifications for 221448: Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD; 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.).; Material: SILICON SEMICONDUCTOR; Mounting Method: THREADED STUD(S). 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-813-5736 still in active supply?

NSN 5961-00-813-5736 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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