PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FUL923Microcircuit,digital

Fairchild Semiconductor Corp · NSN 5962-00-436-1758 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-00-436-1758 — this item is cataloged by the U.S. Government under National Stock Number 5962-00-436-1758. Primary manufacturer part number: FUL923.
Features
  • Microcircuit,digital — FSC 5962
  • Body Outside Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
  • Terminal Type and Quantity: 8 PIN
  • Criticality Code Justification: FEAT
  • Voltage Rating and Type Per Characteristic: 4.0 VOLTS MAXIMUM POWER SOURCE
  • Time Rating Per Chacteristic: 30.00 NANOSECONDS NOMINAL PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT NS
  • Design Function and Quantity: 1 FLIP-FLOP, J-K, CLOCKED
  • Input Circuit Pattern: 4 INPUT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,digital, cataloged under National Stock Number 5962-00-436-1758, 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 17 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 24 commercial cross-references from 8 manufacturers, enabling identification through both NSN and commercial part number lookups. 3 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5962-00-436-1758
Primary Part NumberFUL923
Item NameMicrocircuit,digital
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerFairchild Semiconductor Corp
StatusCANCELLED
Body Outside Diameter0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Terminal Type and Quantity8 PIN
Criticality Code JustificationFEAT
Voltage Rating and Type Per Characteristic4.0 VOLTS MAXIMUM POWER SOURCE
Time Rating Per Chacteristic30.00 NANOSECONDS NOMINAL PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT NS
Design Function and Quantity1 FLIP-FLOP, J-K, CLOCKED
Input Circuit Pattern4 INPUT
Maximum Power Dissipation Rating91.0 MILLIWATTS
Inclosure ConfigurationCAN
Body Height0.165 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
Storage Temp Range-55.0 TO 125.0 CELSIUS DEGC
Terminal Surface TreatmentSOLDER
Case Outline Source and DesignatorT0-99 JOINT ELECTRON DEVICE ENGINEERING COUNCIL
Operating Temp Range+15.0 TO 55.0 CELSIUS DEGC
Features ProvidedMONOLITHIC AND HERMETICALLY SEALED AND POSITIVE OUTPUTS AND MEDIUM SPEED AND W/ENABLE AND MEDIUM POWER
Output Logic FormRESISTOR-TRANSISTOR LOGIC
Inclosure MaterialGLASS AND METAL
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 3
5962-00-208-6756 INTERCHANGEABLE
Microcircuit,digital
5962-01-003-257810063973-101 INTERCHANGEABLE
Microcircuit,digital
Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis
2520-01-504-0644218479 INTERCHANGEABLE
Differential and Drive Assembly,
Cadillac Gage Textron Inc.
Cross-Reference Index
Part NumberManufacturer
FUL923 Fairchild Semiconductor Corp (USA)
3610001-001 Cohu Inc (USA)
5031-190 Raytheon Company Div Rmd Strategic (USA)
U5D992329X Fairchild Semiconductor Corp (USA)
923EC Fairchild Semiconductor Corp (USA)
U5B992328X Fairchild Semiconductor Corp (USA)
CUL923 Fairchild Semiconductor Corp (USA)
4800-183053 Fluke Corp (USA)
U5B992329X Fairchild Semiconductor Corp (USA)
923HC Smead Mfg Co (USA)
3130-183053 Fluke Corp (USA)
923HC Fairchild Semiconductor Corp Components Group Sub of Schlumberger Ltd (USA)
U8A992328 Fairchild Semiconductor Corp (USA)
U5B992328 Fairchild Semiconductor Corp (USA)
923HC Fairchild Semiconductor Corp (USA)
1820-0052 Hewlett-Packard Company Dba HP (USA)
U8A992328X Fairchild Semiconductor Corp (USA)
SL16121 Fairchild Semiconductor Corp (USA)
UX8992328X Fairchild Semiconductor Corp (USA)
DMS84007 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
Related Parts
5962-00-208-6756INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
5962-01-003-2578INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
10063973-101
2520-01-504-0644INTERCHANGEABLE
DIFFERENTIAL AND DRIVE ASSEMBLY,
218479

Frequently Asked Questions

What is NSN 5962-00-436-1758?

NSN 5962-00-436-1758 is a Microcircuit,digital, manufactured by Fairchild Semiconductor Corp, classified under FSC 5962 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5962-00-436-1758?

NSN 5962-00-436-1758 has 24 cross-referenced part numbers: FUL923 (Fairchild Semiconductor Corp), 3610001-001 (Cohu Inc), 5031-190 (Raytheon Company Div Rmd Strategic), U5D992329X (Fairchild Semiconductor Corp), 923EC (Fairchild Semiconductor Corp) and 19 more.

What NSN replaces 5962-00-436-1758?

There are 3 known substitutes for 5962-00-436-1758: 5962-00-208-6756, 5962-01-003-2578, 2520-01-504-0644. Verify interchangeability with system specifications before substitution.

What are the specifications of FUL923?

Key specifications for FUL923: Body Outside Diameter: 0.335 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Terminal Type and Quantity: 8 PIN; Criticality Code Justification: FEAT; Voltage Rating and Type Per Characteristic: 4.0 VOLTS MAXIMUM POWER SOURCE. 19 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5962-00-436-1758 still in active supply?

NSN 5962-00-436-1758 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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