PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

JAN1N3666MSemiconductor Device,diode

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-226-5137 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-226-5137 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-226-5137. Primary manufacturer part number: JAN1N3666M.
Features
  • Semiconductor Device,diode — FSC 5961
  • Features Provided: HERMETICALLY SEALED CASE
  • Overall Diameter: 0.125 INCHES MAXIMUM IN
  • Material: GERMANIUM SEMICONDUCTOR
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • 2 verified cross-references
  • Primary manufacturer: Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Germanium Semiconductor construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-226-5137, 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 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-226-5137
Primary Part NumberJAN1N3666M
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Features ProvidedHERMETICALLY SEALED CASE
Overall Diameter0.125 INCHES MAXIMUM IN
MaterialGERMANIUM SEMICONDUCTOR
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
5961-00-226-5139 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-959-3742 INTERCHANGEABLE
Semiconductor Device,diode
5961-01-103-9804 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
JAN1N3666M Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILS19500-226 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5961-00-226-5139INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-959-3742INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-01-103-9804INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-00-226-5137?

NSN 5961-00-226-5137 is a Semiconductor Device,diode, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-226-5137?

NSN 5961-00-226-5137 has 2 cross-referenced part numbers: JAN1N3666M (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILS19500-226 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5961-00-226-5137?

There are 3 known substitutes for 5961-00-226-5137: 5961-00-226-5139, 5961-00-959-3742, 5961-01-103-9804. Verify interchangeability with system specifications before substitution.

What are the specifications of JAN1N3666M?

Key specifications for JAN1N3666M: Features Provided: HERMETICALLY SEALED CASE; Overall Diameter: 0.125 INCHES MAXIMUM IN; Material: GERMANIUM SEMICONDUCTOR; Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD. 5 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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