PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

1N256Semiconductor Device,diode

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5961-00-518-4499 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-518-4499 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-518-4499. Primary manufacturer part number: 1N256.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: SILICON SEMICONDUCTOR
  • Nondefinitive Spec/std Data: 1N256 TYPE
  • Features Provided: HERMETICALLY SEALED CASE
  • Terminal Type and Quantity: 2 TAB, SOLDER LUG
  • 5 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 5961-00-518-4499, 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 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5961-00-518-4499
Primary Part Number1N256
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
Nondefinitive Spec/std Data1N256 TYPE
Features ProvidedHERMETICALLY SEALED CASE
Terminal Type and Quantity2 TAB, SOLDER LUG
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5120-00-056-3935 INTERCHANGEABLE
Handle,screwdriver
4320-00-192-9321991 INTERCHANGEABLE
Pump,rotary
Oberdorfer Foundries Inc
5133-00-239-0782 INTERCHANGEABLE
Countersink
5940-00-245-5930991 INTERCHANGEABLE
Terminal,lug
Brainin-Advance Industries, Llc
5133-00-255-4065805794 INTERCHANGEABLE
Countersink
Curtiss-Wright Controls, Inc. Div Actuation Division
4730-00-299-0962H4320-299-0962 INTERCHANGEABLE
Nozzle,spray,fluid-Emulsion
Naval Inventory Control Point Mechanicsburg
5930-00-321-5373 INTERCHANGEABLE
Switch,double Tumbl
5950-00-462-0395 INTERCHANGEABLE
Coil,electrical
5120-00-516-4220991 INTERCHANGEABLE
Fishing Tool,pneumatic Tire Valv
Schrader-Bridgeport International Inc Dba Schrader Automotive
5970-00-539-6847 INTERCHANGEABLE
Tape,insulation,electrical
Cross-Reference Index
Part NumberManufacturer
1N256 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MILS19500-194 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
991 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
A2133078 L3harris Technologies, Inc. (USA)
MILE1-991 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5120-00-056-3935INTERCHANGEABLE
HANDLE,SCREWDRIVER
4320-00-192-9321INTERCHANGEABLE
PUMP,ROTARY
991
5133-00-239-0782INTERCHANGEABLE
COUNTERSINK
5940-00-245-5930INTERCHANGEABLE
TERMINAL,LUG
991
5133-00-255-4065INTERCHANGEABLE
COUNTERSINK
805794
4730-00-299-0962INTERCHANGEABLE
NOZZLE,SPRAY,FLUID-EMULSION
H4320-299-0962
5930-00-321-5373INTERCHANGEABLE
SWITCH,DOUBLE TUMBL
5950-00-462-0395INTERCHANGEABLE
COIL,ELECTRICAL
5120-00-516-4220INTERCHANGEABLE
FISHING TOOL,PNEUMATIC TIRE VALV
991
5970-00-539-6847INTERCHANGEABLE
TAPE,INSULATION,ELECTRICAL
5961-00-543-9365INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
1N256
5961-00-646-4804INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE

Frequently Asked Questions

What is NSN 5961-00-518-4499?

NSN 5961-00-518-4499 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 5961-00-518-4499?

NSN 5961-00-518-4499 has 5 cross-referenced part numbers: 1N256 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MILS19500-194 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 991 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), A2133078 (L3harris Technologies, Inc.), MILE1-991 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5961-00-518-4499?

There are 12 known substitutes for 5961-00-518-4499: 5120-00-056-3935, 4320-00-192-9321, 5133-00-239-0782 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 1N256?

Key specifications for 1N256: Material: SILICON SEMICONDUCTOR; Nondefinitive Spec/std Data: 1N256 TYPE; Features Provided: HERMETICALLY SEALED CASE; Terminal Type and Quantity: 2 TAB, SOLDER LUG. 4 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5961-00-518-4499 still in active supply?

NSN 5961-00-518-4499 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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