PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MILS19500-194Semiconductor Device,diode

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-646-4804 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-646-4804 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-646-4804. Primary manufacturer part number: MILS19500-194.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: SILICON SEMICONDUCTOR
  • Terminal Type and Quantity: 2 TAB, SOLDER LUG
  • Nondefinitive Spec/std Data: 1N254 TYPE
  • Features Provided: HERMETICALLY SEALED CASE
  • 3 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 Silicon Semiconductor construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-646-4804, 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 3 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-646-4804
Primary Part NumberMILS19500-194
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
StatusCANCELLED
MaterialSILICON SEMICONDUCTOR
Terminal Type and Quantity2 TAB, SOLDER LUG
Nondefinitive Spec/std Data1N254 TYPE
Features ProvidedHERMETICALLY SEALED CASE
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5961-00-518-4499 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-553-7108 INTERCHANGEABLE
Semiconductor Device,diode
5961-00-850-8449 INTERCHANGEABLE
Semiconductor Device,diode
Cross-Reference Index
Part NumberManufacturer
MILS19500-194 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
JAN1N254 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
1N254 Entron Industries Limited Partnership Dba Entron Industries Property Div (USA)
Related Parts
5961-00-518-4499INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-553-7108INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
5961-00-850-8449INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-00-646-4804?

NSN 5961-00-646-4804 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: cancelled.

What are the part numbers for NSN 5961-00-646-4804?

NSN 5961-00-646-4804 has 3 cross-referenced part numbers: MILS19500-194 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), JAN1N254 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 1N254 (Entron Industries Limited Partnership Dba Entron Industries Property Div).

What NSN replaces 5961-00-646-4804?

There are 3 known substitutes for 5961-00-646-4804: 5961-00-518-4499, 5961-00-553-7108, 5961-00-850-8449. Verify interchangeability with system specifications before substitution.

What are the specifications of MILS19500-194?

Key specifications for MILS19500-194: Material: SILICON SEMICONDUCTOR; Terminal Type and Quantity: 2 TAB, SOLDER LUG; Nondefinitive Spec/std Data: 1N254 TYPE; Features Provided: HERMETICALLY SEALED CASE. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-646-4804 still in active supply?

NSN 5961-00-646-4804 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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