PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

LM123KMicrocircuit,digital

National Semiconductor Corporation · NSN 5962-01-019-2257 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-019-2257 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-019-2257. Primary manufacturer part number: LM123K.
Features
  • Microcircuit,digital — FSC 5962
  • 8 verified cross-references
  • Primary manufacturer: National Semiconductor Corporation
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-01-019-2257, is classified within Federal Supply Class 5962 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is National Semiconductor Corporation. This item has 8 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameMicrocircuit,digital
FSC / FSG5962 — No Item Name Available (FSG 59)
ManufacturersNorthrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems (CAGE 77646); Eldec Aerospace Corp (CAGE 08748); Thales Deutschland Gmbh (CAGE D2416); Thales Sa (CAGE F6481); Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S (CAGE D0894)
Technical Specifications
ParameterValue
NSN5962-01-019-2257
Primary Part NumberLM123K
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerNational Semiconductor Corporation
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 3
2920-00-462-4848101863-1 INTERCHANGEABLE
Starter,engine,electrical
Caterpillar Inc Div Caterpillar Defense
5962-01-087-8519 INTERCHANGEABLE
Microcircuit,linear
5962-01-140-7690LM123K INTERCHANGEABLE
Microcircuit,linear
National Semiconductor Corporation
Cross-Reference Index
Part NumberManufacturer
101863-1 Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems (USA)
AR26-01 Eldec Aerospace Corp (USA)
99092115 Thales Deutschland Gmbh (DEU)
AR26-01G Eldec Aerospace Corp (USA)
99092115 Thales Sa (FRA)
B04674976 Rohde & Schwarz Gmbh & Co. Kommanditgesellschaft Dba R & S (DEU)
LM123K PRIMARY National Semiconductor Corporation (USA)
LM123K National Semiconductor Corp (USA)
Related Parts
2920-00-462-4848INTERCHANGEABLE
STARTER,ENGINE,ELECTRICAL
101863-1
5962-01-087-8519INTERCHANGEABLE
MICROCIRCUIT,LINEAR
5962-01-140-7690INTERCHANGEABLE
MICROCIRCUIT,LINEAR
LM123K

Frequently Asked Questions

What is NSN 5962-01-019-2257?

NSN 5962-01-019-2257 is a Microcircuit,digital, manufactured by National Semiconductor Corporation, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-019-2257?

NSN 5962-01-019-2257 has 8 cross-referenced part numbers: 101863-1 (Northrop Grumman Systems Corporation Dba Aerospace Systems Div Aeronautics Systems), AR26-01 (Eldec Aerospace Corp), 99092115 (Thales Deutschland Gmbh), AR26-01G (Eldec Aerospace Corp), 99092115 (Thales Sa) and 3 more.

What NSN replaces 5962-01-019-2257?

There are 3 known substitutes for 5962-01-019-2257: 2920-00-462-4848, 5962-01-087-8519, 5962-01-140-7690. Verify interchangeability with system specifications before substitution.

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