PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

CK949Semiconductor Device,diode

Raytheon Company Dba Raytheon Co · NSN 5961-00-347-9399 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-347-9399 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-347-9399. Primary manufacturer part number: CK949.
Features
  • Semiconductor Device,diode — FSC 5961
  • Nominal Thread Size: 0.190 INCHES IN
  • Mounting Facility Quantity: 1
  • Features Provided: HERMETICALLY SEALED CASE
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS AMBIENT AIR DEGC
  • Voltage Rating in Volts Per Characteristic: 400.0 MAXIMUM REVERSE VOLTAGE, PEAK
  • Overall Width Across Flats: 0.438 INCHES NOMINAL IN
  • Terminal Type and Quantity: 1 TAB, SOLDER LUG AND 1 THREADED STUD
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 5961-00-347-9399, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-347-9399
Primary Part NumberCK949
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon Co
StatusCANCELLED
Nominal Thread Size0.190 INCHES IN
Mounting Facility Quantity1
Features ProvidedHERMETICALLY SEALED CASE
Maximum Operating Temp Per Measurement Point175.0 CELSIUS AMBIENT AIR DEGC
Voltage Rating in Volts Per Characteristic400.0 MAXIMUM REVERSE VOLTAGE, PEAK
Overall Width Across Flats0.438 INCHES NOMINAL IN
Terminal Type and Quantity1 TAB, SOLDER LUG AND 1 THREADED STUD
Current Rating Per Characteristic5.00 AMPERES MAXIMUM AVERAGE FORWARD CURRENT AVERAGED OVER A FULL 60-HZ CYCLE
MaterialSILICON SEMICONDUCTOR
Mounting MethodTHREADED STUD(S)
Thread Series DesignatorUNF
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
3110-00-227-3257HJ405228 INTERCHANGEABLE
Bearing,roller,needle
Timken Aerospace, Inc Dba Torrington Product
3110-00-227-3295MR4-0 INTERCHANGEABLE
Bearing,roller,rod End
Rexnord Industries, Llc Div Aerosspace Bearing Operation
5940-00-230-8150524 INTERCHANGEABLE
Terminal,lug
Brainin-Advance Industries, Llc
5961-00-440-2265 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-732-22627901075-147 INTERCHANGEABLE
Semiconductor Device,diode
General Motors Corp
5961-00-752-0929 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-755-81501N1585 INTERCHANGEABLE
Semiconductor Device,diode
Semitronics Corp
5961-00-978-6318 INTERCHANGEABLE
Semiconductor Device,diode
5820-01-621-2389MR-40 INTERCHANGEABLE
Receiver Subassembly,radio
Poly-Planar Inc
Cross-Reference Index
Part NumberManufacturer
CK949 Raytheon Company (USA)
05-900400 Safran Power Usa Llc (USA)
TM47 Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
CK949 PRIMARY Raytheon Company Dba Raytheon Co (USA)
66-2868 Infineon Technologies Americas Corp (USA)
05-900400 Lucas Aerospace Power Equipment Corporation (USA)
MR40 Electronic Devices Inc Dba E D I (USA)
PC4877-2 Rockwell Collins, Inc. Dba Rc Displays Systems (USA)
1N1615 Texas Instruments Incorporated (USA)
CK949 Raytheon Company Div Corp (USA)
A15762-1 Ge Aviation Systems Llc Dba Ge Aviation Systems Llc (USA)
1N1585 Diodes Inc (USA)
Related Parts
3110-00-227-3257INTERCHANGEABLE
BEARING,ROLLER,NEEDLE
HJ405228
3110-00-227-3295INTERCHANGEABLE
BEARING,ROLLER,ROD END
MR4-0
5940-00-230-8150INTERCHANGEABLE
TERMINAL,LUG
524
5961-00-440-2265INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-732-2262INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
7901075-147
5961-00-752-0929INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-755-8150INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N1585
5961-00-978-6318INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5820-01-621-2389INTERCHANGEABLE
RECEIVER SUBASSEMBLY,RADIO
MR-40

Frequently Asked Questions

What is NSN 5961-00-347-9399?

NSN 5961-00-347-9399 is a Semiconductor Device,diode, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-347-9399?

NSN 5961-00-347-9399 has 12 cross-referenced part numbers: CK949 (Raytheon Company), 05-900400 (Safran Power Usa Llc), TM47 (Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp), CK949 (Raytheon Company Dba Raytheon Co), 66-2868 (Infineon Technologies Americas Corp) and 7 more.

What NSN replaces 5961-00-347-9399?

There are 9 known substitutes for 5961-00-347-9399: 3110-00-227-3257, 3110-00-227-3295, 5940-00-230-8150 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of CK949?

Key specifications for CK949: Nominal Thread Size: 0.190 INCHES IN; Mounting Facility Quantity: 1; Overall Length: 0.405 INCHES MAXIMUM IN; Features Provided: HERMETICALLY SEALED CASE. 12 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-347-9399 still in active supply?

NSN 5961-00-347-9399 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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