PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

21676-03Microcircuit,memory

L3 Technologies, Inc. Div Communication Systems-West · NSN 5962-01-139-0729 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-139-0729 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-139-0729. Primary manufacturer part number: 21676-03.
Features
  • Microcircuit,memory — FSC 5962
  • Output Logic Form: TRANSISTOR-TRANSISTOR LOGIC
  • Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC
  • Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC
  • Test Data Document: 11627-ALT21676 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
  • Time Rating Per Chacteristic: 60.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT NS
  • Terminal Type and Quantity: 18 PRINTED CIRCUIT
  • Memory Device Type: ROM
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,memory, cataloged under National Stock Number 5962-01-139-0729, 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 L3 Technologies, Inc. Div Communication Systems-West. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5962-01-139-0729
Primary Part Number21676-03
Item NameMicrocircuit,memory
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerL3 Technologies, Inc. Div Communication Systems-West
StatusCANCELLED
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Operating Temp Range-55.0 TO 125.0 CELSIUS DEGC
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Test Data Document11627-ALT21676 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING)
Time Rating Per Chacteristic60.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT NS
Terminal Type and Quantity18 PRINTED CIRCUIT
Memory Device TypeROM
Voltage Rating and Type Per Characteristic-1.2 VOLTS MINIMUM POWER SOURCE AND 5.5 VOLTS MAXIMUM POWER SOURCE
Terminal Surface TreatmentSOLDER
Body Height0.130 INCHES MINIMUM AND 0.135 INCHES MAXIMUM IN
Features ProvidedBIPOLAR AND PROGRAMMABLE AND HERMETICALLY SEALED AND SCHOTTKY
Body Length0.882 INCHES MINIMUM AND 0.925 INCHES MAXIMUM IN
Body Width0.310 INCHES MAXIMUM IN
Inclosure ConfigurationDUAL-IN-LINE
Input Circuit Pattern10 INPUT
Inclosure MaterialCERAMIC AND GLASS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5962-01-051-2113HM1-7643-8 INTERCHANGEABLE
Microcircuit,digital
Renesas Electronics America Inc
5962-01-099-638221008-04 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
5962-01-099-638321008-05 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
5962-01-139-321021676-00 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
5962-01-139-321121676-01 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
5962-01-139-321221676-02 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
5962-01-146-1854 INTERCHANGEABLE
Microcircuit,memory
5962-01-162-810321676-07 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
5962-01-162-810421676-08 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
5962-01-162-810521676-09 INTERCHANGEABLE
Microcircuit,memory
L3 Technologies, Inc. Div Communication Systems-West
Cross-Reference Index
Part NumberManufacturer
MM5353-1D/883B Mmi/amd (USA)
ROM/PROM FAMILY 030 Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
DM54S573J/883 National Semiconductor Corporation (USA)
HM1-7643-8 Renesas Electronics America Inc (USA)
21676-03 PRIMARY L3 Technologies, Inc. Div Communication Systems-West (USA)
S82S137I/883B Philips Semiconductors Inc (USA)
S82S137F/883B Philips Semiconductors Inc (USA)
MM5353D/883B Mmi/amd (USA)
Related Parts
5962-01-051-2113INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
HM1-7643-8
5962-01-099-6382INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21008-04
5962-01-099-6383INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21008-05
5962-01-139-3210INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21676-00
5962-01-139-3211INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21676-01
5962-01-139-3212INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21676-02
5962-01-146-1854INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5962-01-162-8103INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21676-07
5962-01-162-8104INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21676-08
5962-01-162-8105INTERCHANGEABLE
MICROCIRCUIT,MEMORY
21676-09
5962-01-225-6763INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
0N296083-2
5962-01-234-1923INTERCHANGEABLE
MICROCIRCUIT,MEMORY
895900-3

Frequently Asked Questions

What is NSN 5962-01-139-0729?

NSN 5962-01-139-0729 is a Microcircuit,memory, manufactured by L3 Technologies, Inc. Div Communication Systems-West, classified under FSC 5962 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5962-01-139-0729?

NSN 5962-01-139-0729 has 8 cross-referenced part numbers: MM5353-1D/883B (Mmi/amd), ROM/PROM FAMILY 030 (Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings)), DM54S573J/883 (National Semiconductor Corporation), HM1-7643-8 (Renesas Electronics America Inc), 21676-03 (L3 Technologies, Inc. Div Communication Systems-West) and 3 more.

What NSN replaces 5962-01-139-0729?

There are 12 known substitutes for 5962-01-139-0729: 5962-01-051-2113, 5962-01-099-6382, 5962-01-099-6383 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 21676-03?

Key specifications for 21676-03: Output Logic Form: TRANSISTOR-TRANSISTOR LOGIC; Operating Temp Range: -55.0 TO 125.0 CELSIUS DEGC; Storage Temp Range: -65.0 TO 150.0 CELSIUS DEGC; Test Data Document: 11627-ALT21676 DRAWING (THIS IS THE BASIC GOVERNING DRAWING, SUCH AS A CONTRACTOR DRAWING, ORIGINAL EQUIPMENT MANUFACTURER DRAWING, ETC.; EXCLUDES ANY SPECIFICATION, STANDARD OR OTHER DOCUMENT THAT MAY BE REFERENCED IN A BASIC GOVERNING DRAWING). 17 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5962-01-139-0729 still in active supply?

NSN 5962-01-139-0729 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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