PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

303GSemiconductor Device,diode

Westinghouse Electric Corp · NSN 5961-00-615-5237 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-615-5237 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-615-5237. Primary manufacturer part number: 303G.
Features
  • Semiconductor Device,diode — FSC 5961
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD
  • Mounting Facility Quantity: 1
  • Maximum Operating Temp Per Measurement Point: 190.0 CELSIUS JUNCTION DEGC
  • Mounting Method: THREADED STUD(S)
  • Current Rating Per Characteristic: 22.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
  • Overall Width Across Flats: 0.687 INCHES NOMINAL IN
  • Voltage Rating in Volts Per Characteristic: 350.0 MAXIMUM REVERSE VOLTAGE, PEAK
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 5961-00-615-5237, 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 Westinghouse Electric Corp. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-615-5237
Primary Part Number303G
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerWestinghouse Electric Corp
StatusCANCELLED
Terminal Type and Quantity1 TAB, SOLDER LUG AND 1 THREADED STUD
Mounting Facility Quantity1
Maximum Operating Temp Per Measurement Point190.0 CELSIUS JUNCTION DEGC
Mounting MethodTHREADED STUD(S)
Current Rating Per Characteristic22.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
Overall Width Across Flats0.687 INCHES NOMINAL IN
Voltage Rating in Volts Per Characteristic350.0 MAXIMUM REVERSE VOLTAGE, PEAK
Power Rating Per Characteristic30.0 WATTS MAXIMUM TOTAL POWER DISSIPATION
Nominal Thread Size0.250 INCHES IN
Features ProvidedHERMETICALLY SEALED CASE
Thread Series DesignatorUNF
MaterialSILICON SEMICONDUCTOR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 2
3110-00-144-87891B4114 INTERCHANGEABLE
Bearing,ball,annular
Caterpillar Inc Div Caterpillar Defense
5945-00-601-4212291C INTERCHANGEABLE
Relay,electromagnetic
Lucent Technologies Inc Corporate Headquarters
Cross-Reference Index
Part NumberManufacturer
303G PRIMARY Westinghouse Electric Corp (USA)
232-1163P7 Raytheon Company Dba Raytheon Co (USA)
232-1163P7 Raytheon Company Div Corp (USA)
303G Westinghouse Electric Corp Semiconductor Div (USA)
Related Parts
3110-00-144-8789INTERCHANGEABLE
BEARING,BALL,ANNULAR
1B4114
5945-00-601-4212INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
291C

Frequently Asked Questions

What is NSN 5961-00-615-5237?

NSN 5961-00-615-5237 is a Semiconductor Device,diode, manufactured by Westinghouse Electric Corp, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-615-5237?

NSN 5961-00-615-5237 has 4 cross-referenced part numbers: 303G (Westinghouse Electric Corp), 232-1163P7 (Raytheon Company Dba Raytheon Co), 232-1163P7 (Raytheon Company Div Corp), 303G (Westinghouse Electric Corp Semiconductor Div).

What NSN replaces 5961-00-615-5237?

There are 2 known substitutes for 5961-00-615-5237: 3110-00-144-8789, 5945-00-601-4212. Verify interchangeability with system specifications before substitution.

What are the specifications of 303G?

Key specifications for 303G: Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD; Overall Length: 0.450 INCHES NOMINAL IN; Mounting Facility Quantity: 1; Maximum Operating Temp Per Measurement Point: 190.0 CELSIUS JUNCTION DEGC. 13 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-615-5237 still in active supply?

NSN 5961-00-615-5237 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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