PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66C12170Semiconductor Device,diode

Air Armament Center/ En · NSN 5961-00-148-4501 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-148-4501 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-148-4501. Primary manufacturer part number: 66C12170.
Features
  • Semiconductor Device,diode — FSC 5961
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • Overall Diameter: 0.107 INCHES MAXIMUM IN
  • Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS AMBIENT AIR DEGC
  • Mounting Method: TERMINAL
  • Features Provided: HERMETICALLY SEALED CASE
  • Current Rating Per Characteristic: 30.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
  • Voltage Rating in Volts Per Characteristic: 200.0 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 5961-00-148-4501, 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 Air Armament Center/ En. Government technical data includes 10 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-148-4501
Primary Part Number66C12170
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerAir Armament Center/ En
StatusCANCELLED
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Overall Diameter0.107 INCHES MAXIMUM IN
Maximum Operating Temp Per Measurement Point175.0 CELSIUS AMBIENT AIR DEGC
Mounting MethodTERMINAL
Features ProvidedHERMETICALLY SEALED CASE
Current Rating Per Characteristic30.00 AMPERES MAXIMUM PEAK FORWARD SURGE CURRENT
Voltage Rating in Volts Per Characteristic200.0 MAXIMUM REVERSE VOLTAGE, PEAK
Terminal Length1.000 INCHES MINIMUM IN
MaterialSILICON SEMICONDUCTOR
MaterialGLASS ENCLOSURE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 9
5961-00-156-0618 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-843-2498 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-880-2938 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-914-6005 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-957-6865 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-093-8354SM-B-640008 INTERCHANGEABLE
Semiconductor Device,diode
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
5961-01-126-9560009-01179-0003 INTERCHANGEABLE
Semiconductor Device,diode
Dit-Mco International Llc
5961-01-193-8320 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-229-146176E2N315 INTERCHANGEABLE
Semiconductor Device,diode
Naval Air Warfare Center Aircraft Div
Cross-Reference Index
Part NumberManufacturer
66C12170 PRIMARY Air Armament Center/ En (USA)
1N4003 Freescale Semiconductor, Inc. (USA)
1N4003 Texas Instruments Incorporated (USA)
1N4003 Diodes Inc (USA)
Related Parts
5961-00-156-0618INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-843-2498INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-880-2938INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-914-6005INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-957-6865INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-093-8354INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
SM-B-640008
5961-01-126-9560INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
009-01179-0003
5961-01-193-8320INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-229-1461INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
76E2N315

Frequently Asked Questions

What is NSN 5961-00-148-4501?

NSN 5961-00-148-4501 is a Semiconductor Device,diode, manufactured by Air Armament Center/ En, classified under FSC 5961 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5961-00-148-4501?

NSN 5961-00-148-4501 has 4 cross-referenced part numbers: 66C12170 (Air Armament Center/ En), 1N4003 (Freescale Semiconductor, Inc.), 1N4003 (Texas Instruments Incorporated), 1N4003 (Diodes Inc).

What NSN replaces 5961-00-148-4501?

There are 9 known substitutes for 5961-00-148-4501: 5961-00-156-0618, 5961-00-843-2498, 5961-00-880-2938 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 66C12170?

Key specifications for 66C12170: Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD; Overall Diameter: 0.107 INCHES MAXIMUM IN; Maximum Operating Temp Per Measurement Point: 175.0 CELSIUS AMBIENT AIR DEGC; Mounting Method: TERMINAL. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-148-4501 still in active supply?

NSN 5961-00-148-4501 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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