PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

KS-20347 L4Transistor

Lucent Technologies Inc Corporate Headquarters · NSN 5961-00-521-1283 · FSC 5961 · No Item Name Available
Verified by PartsTable
NSN 5961-00-521-1283 — this item is cataloged by the U.S. Government under National Stock Number 5961-00-521-1283. Primary manufacturer part number: KS-20347 L4.
Features
  • Transistor — FSC 5961
  • Internal Configuration: JUNCTION CONTACT
  • Mounting Method: TERMINAL
  • Terminal Type and Quantity: 3 TAB, SOLDER LUG
  • Electrode Internally-Electrically Connected to Case: COLLECTOR
  • Semiconductor Material: SILICON
  • Features Provided: HERMETICALLY SEALED CASE
  • 4 verified cross-references
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Transistor, cataloged under National Stock Number 5961-00-521-1283, 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 Lucent Technologies Inc Corporate Headquarters. Government technical data includes 6 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. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5961-00-521-1283
Primary Part NumberKS-20347 L4
Item NameTransistor
FSC / FSG5961 / 59 — No Item Name Available
ManufacturerLucent Technologies Inc Corporate Headquarters
StatusACTIVE
Internal ConfigurationJUNCTION CONTACT
Mounting MethodTERMINAL
Terminal Type and Quantity3 TAB, SOLDER LUG
Electrode Internally-Electrically Connected to CaseCOLLECTOR
Semiconductor MaterialSILICON
Features ProvidedHERMETICALLY SEALED CASE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
5330-00-292-1628 INTERCHANGEABLE
Seal,plain Encased
6680-01-216-9449LS-60326 INTERCHANGEABLE
Switch,liquid Level
Setra Systems, Inc. Dba Gems Sensors
6920-01-554-365760326 INTERCHANGEABLE
Adapter,artillery Trainer
American Apex Corporation
5120-01-669-143960326 INTERCHANGEABLE
Socket,socket Wrench
Wiha Quality Tools
Cross-Reference Index
Part NumberManufacturer
KS-20347 L4 American Telephone and Telegraph Co (USA)
KS-20347 L4 Lucent Technologies Inc Dba Federal Marketing Group (USA)
KS-20347 L4 PRIMARY Lucent Technologies Inc Corporate Headquarters (USA)
60326 Renesas Electronics America Inc (USA)
Related Parts
5330-00-292-1628INTERCHANGEABLE
SEAL,PLAIN ENCASED
6680-01-216-9449INTERCHANGEABLE
SWITCH,LIQUID LEVEL
LS-60326
6920-01-554-3657INTERCHANGEABLE
ADAPTER,ARTILLERY TRAINER
60326
5120-01-669-1439INTERCHANGEABLE
SOCKET,SOCKET WRENCH
60326

Frequently Asked Questions

What is NSN 5961-00-521-1283?

NSN 5961-00-521-1283 is a Transistor, manufactured by Lucent Technologies Inc Corporate Headquarters, classified under FSC 5961 (No Item Name Available). Status: active.

What are the part numbers for NSN 5961-00-521-1283?

NSN 5961-00-521-1283 has 4 cross-referenced part numbers: KS-20347 L4 (American Telephone and Telegraph Co), KS-20347 L4 (Lucent Technologies Inc Dba Federal Marketing Group), KS-20347 L4 (Lucent Technologies Inc Corporate Headquarters), 60326 (Renesas Electronics America Inc).

What NSN replaces 5961-00-521-1283?

There are 4 known substitutes for 5961-00-521-1283: 5330-00-292-1628, 6680-01-216-9449, 6920-01-554-3657 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of KS-20347 L4?

Key specifications for KS-20347 L4: Overall Length: 1.573 INCHES MAXIMUM IN; Internal Configuration: JUNCTION CONTACT; Overall Height: 0.450 INCHES MAXIMUM IN; Mounting Method: TERMINAL. 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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