PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

394-1566-1Semiconductor Device,diode

Lockheed Martin Corporation Dba Lockheed Martin Government · NSN 5961-00-940-0542 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-940-0542 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-940-0542. Primary manufacturer part number: 394-1566-1.
Features
  • Semiconductor Device,diode — FSC 5961
  • Material: GLASS ENCLOSURE
  • Material: GERMANIUM SEMICONDUCTOR
  • Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD
  • Features Provided: HERMETICALLY SEALED CASE
  • Overall Diameter: 0.096 INCHES NOMINAL IN
  • Current Rating Per Characteristic: 30.00 MICROAMPERES MAXIMUM REVERSE CURRENT, PEAK
  • Mounting Method: TERMINAL
Applications
  • Circuit regulation and filtering
  • Signal conditioning
  • Power supply stabilization
  • Applications requiring Glass Enclosure construction
General Description

The Semiconductor Device,diode, cataloged under National Stock Number 5961-00-940-0542, 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 Lockheed Martin Corporation Dba Lockheed Martin Government. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 7 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-940-0542
Primary Part Number394-1566-1
Item NameSemiconductor Device,diode
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerLockheed Martin Corporation Dba Lockheed Martin Government
StatusACTIVE
MaterialGLASS ENCLOSURE
MaterialGERMANIUM SEMICONDUCTOR
Terminal Type and Quantity2 UNINSULATED WIRE LEAD
Features ProvidedHERMETICALLY SEALED CASE
Overall Diameter0.096 INCHES NOMINAL IN
Current Rating Per Characteristic30.00 MICROAMPERES MAXIMUM REVERSE CURRENT, PEAK
Mounting MethodTERMINAL
Voltage Rating in Volts Per Characteristic6.0 MAXIMUM REVERSE VOLTAGE, PEAK
Terminal Length1.000 INCHES MINIMUM IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5220-00-116-1911M22520/3-2 INTERCHANGEABLE
Gage,crimping Tool
Sae International Dba Sae International
5975-00-491-54331788369-4 INTERCHANGEABLE
Conduit,metal,flexible
Navair and Navsea Managed Original Design Activity Dwg Not Material/parts Supplier
5977-00-583-9916946-112 INTERCHANGEABLE
Brush,electrical Contact
Kurz & Root Generator Company, Llc
3950-00-905-7261 INTERCHANGEABLE
Winch,drum,power Operated
6680-00-906-1461D3435 INTERCHANGEABLE
Counter,electrical
Lockheed Martin Corporation Div Rms
4730-01-640-8286G-120 INTERCHANGEABLE
Plug,pipe
Webb Research Corp.
Cross-Reference Index
Part NumberManufacturer
G120 Itt Semiconductors a Division of International Telephone and Telegraph Corp (USA)
HD1842A Stellant Systems Inc (USA)
394-1566-1 Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions (USA)
GD172 General Semiconductor Inc (USA)
D3435 Philips Ecg Inc Div of North American Philips Corp (USA)
S560G Gilbert Engineering Co Inc/incon Sub of Transitron Electronic Corp (USA)
394-1566-1 PRIMARY Lockheed Martin Corporation Dba Lockheed Martin Government (USA)
Related Parts
5220-00-116-1911INTERCHANGEABLE
GAGE,CRIMPING TOOL
M22520/3-2
5975-00-491-5433INTERCHANGEABLE
CONDUIT,METAL,FLEXIBLE
1788369-4
5977-00-583-9916INTERCHANGEABLE
BRUSH,ELECTRICAL CONTACT
946-112
3950-00-905-7261INTERCHANGEABLE
WINCH,DRUM,POWER OPERATED
6680-00-906-1461INTERCHANGEABLE
COUNTER,ELECTRICAL
D3435
4730-01-640-8286INTERCHANGEABLE
PLUG,PIPE
G-120

Frequently Asked Questions

What is NSN 5961-00-940-0542?

NSN 5961-00-940-0542 is a Semiconductor Device,diode, manufactured by Lockheed Martin Corporation Dba Lockheed Martin Government, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-940-0542?

NSN 5961-00-940-0542 has 7 cross-referenced part numbers: G120 (Itt Semiconductors a Division of International Telephone and Telegraph Corp), HD1842A (Stellant Systems Inc), 394-1566-1 (Lockheed Martin Corporation Div Lockheed Martin Information Systems & Global Solutions), GD172 (General Semiconductor Inc), D3435 (Philips Ecg Inc Div of North American Philips Corp) and 2 more.

What NSN replaces 5961-00-940-0542?

There are 6 known substitutes for 5961-00-940-0542: 5220-00-116-1911, 5975-00-491-5433, 5977-00-583-9916 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 394-1566-1?

Key specifications for 394-1566-1: Material: GLASS ENCLOSURE; Material: GERMANIUM SEMICONDUCTOR; Terminal Type and Quantity: 2 UNINSULATED WIRE LEAD; Features Provided: HERMETICALLY SEALED CASE. 10 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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