PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54LS123DMQBMicrocircuit,digital

Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd · NSN 5962-01-148-2392 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-148-2392 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-148-2392. Primary manufacturer part number: 54LS123DMQB.
Features
  • Microcircuit,digital — FSC 5962
  • Inclosure Configuration: DUAL-IN-LINE
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Features Provided: BURN IN, MIL-STD-883, CLASS B AND RETRIGGERABLE AND W/CLEAR AND MONOSTABLE
  • Body Length: 0.750 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
  • Design Function and Quantity: 2 MULTIVIBRATOR, MONOSTABLE
  • Body Width: 0.285 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
  • Body Height: 0.200 INCHES MAXIMUM IN
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-01-148-2392, 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 Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd. Government technical data includes 8 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. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5962-01-148-2392
Primary Part Number54LS123DMQB
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd
StatusACTIVE
Inclosure ConfigurationDUAL-IN-LINE
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Features ProvidedBURN IN, MIL-STD-883, CLASS B AND RETRIGGERABLE AND W/CLEAR AND MONOSTABLE
Body Length0.750 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Design Function and Quantity2 MULTIVIBRATOR, MONOSTABLE
Body Width0.285 INCHES MINIMUM AND 0.291 INCHES MAXIMUM IN
Body Height0.200 INCHES MAXIMUM IN
Inclosure MaterialCERAMIC
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-01-127-4360SNJ54LS123J INTERCHANGEABLE
Microcircuit,digital
Texas Instruments Incorporated
Cross-Reference Index
Part NumberManufacturer
54LS123DMQB Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd (USA)
54LS123J/883B Fairchild Semiconductor Corp Semiconductor Div Hq (USA)
34031044-001 Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services (USA)
54LS123DMQB Fairchild Semiconductor Corp (USA)
Related Parts
5962-01-127-4360INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
SNJ54LS123J

Frequently Asked Questions

What is NSN 5962-01-148-2392?

NSN 5962-01-148-2392 is a Microcircuit,digital, manufactured by Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-148-2392?

NSN 5962-01-148-2392 has 4 cross-referenced part numbers: 54LS123DMQB (Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd), 54LS123J/883B (Fairchild Semiconductor Corp Semiconductor Div Hq), 34031044-001 (Sypris Electronics, Llc Div Sypris Electronics, Llc - Colorado Field Services), 54LS123DMQB (Fairchild Semiconductor Corp).

What NSN replaces 5962-01-148-2392?

There is 1 known substitute for 5962-01-148-2392: 5962-01-127-4360. Verify interchangeability with system specifications before substitution.

What are the specifications of 54LS123DMQB?

Key specifications for 54LS123DMQB: Inclosure Configuration: DUAL-IN-LINE; Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC; Features Provided: BURN IN, MIL-STD-883, CLASS B AND RETRIGGERABLE AND W/CLEAR AND MONOSTABLE; Body Length: 0.750 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN. 8 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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