PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

54LS257DMQBMicrocircuit,digital

Fairchild Semiconductor Corp · NSN 5962-01-166-9372 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-166-9372 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-166-9372. Primary manufacturer part number: 54LS257DMQB.
Features
  • Microcircuit,digital — FSC 5962
  • Inclosure Configuration: DUAL-IN-LINE
  • Voltage Rating and Type Per Characteristic: 5.5 VOLTS NOMINAL POWER SOURCE
  • Features Provided: 3-STATE OUTPUT AND HIGH IMPEDANCE AND LOW POWER AND SCHOTTKY AND HIGH SPEED AND HERMETICALLY SEALED
  • Inclosure Material: CERAMIC
  • Output Logic Form: TRANSISTOR-TRANSISTOR LOGIC
  • Terminal Type and Quantity: 16 PRINTED CIRCUIT
  • Body Length: 0.755 INCHES MINIMUM AND 0.785 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 5962-01-166-9372, 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. Government technical data includes 15 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, 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
NSN5962-01-166-9372
Primary Part Number54LS257DMQB
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusACTIVE
Inclosure ConfigurationDUAL-IN-LINE
Voltage Rating and Type Per Characteristic5.5 VOLTS NOMINAL POWER SOURCE
Features Provided3-STATE OUTPUT AND HIGH IMPEDANCE AND LOW POWER AND SCHOTTKY AND HIGH SPEED AND HERMETICALLY SEALED
Inclosure MaterialCERAMIC
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Terminal Type and Quantity16 PRINTED CIRCUIT
Body Length0.755 INCHES MINIMUM AND 0.785 INCHES MAXIMUM IN
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Terminal Surface TreatmentSOLDER
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Body Width0.245 INCHES MINIMUM AND 0.271 INCHES MAXIMUM IN
Body Height0.185 INCHES NOMINAL IN
Design Function and Quantity4 MULTIPLEXER
Test Data Document96906-MIL-STD-883 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Input Circuit Pattern10 INPUT
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5962-01-238-5522 INTERCHANGEABLE
Microcircuit,digital
Cross-Reference Index
Part NumberManufacturer
54LS257DMQB Fairchild Semiconductor Corp (USA)
Related Parts
5962-01-238-5522INTERCHANGEABLE
MICROCIRCUIT,DIGITAL

Frequently Asked Questions

What is NSN 5962-01-166-9372?

NSN 5962-01-166-9372 is a Microcircuit,digital, manufactured by Fairchild Semiconductor Corp, classified under FSC 5962 (No Item Name Available). Status: active.

What are the part numbers for NSN 5962-01-166-9372?

NSN 5962-01-166-9372 has 1 cross-referenced part number: 54LS257DMQB (Fairchild Semiconductor Corp).

What NSN replaces 5962-01-166-9372?

There is 1 known substitute for 5962-01-166-9372: 5962-01-238-5522. Verify interchangeability with system specifications before substitution.

What are the specifications of 54LS257DMQB?

Key specifications for 54LS257DMQB: Inclosure Configuration: DUAL-IN-LINE; Voltage Rating and Type Per Characteristic: 5.5 VOLTS NOMINAL POWER SOURCE; Features Provided: 3-STATE OUTPUT AND HIGH IMPEDANCE AND LOW POWER AND SCHOTTKY AND HIGH SPEED AND HERMETICALLY SEALED; Inclosure Material: CERAMIC. 16 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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