PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

56S821Microcircuit,memory

Intersil Inc Sub of General Electric Co · NSN 5962-01-078-7029 · FSC 5962 · No Item Name Available
Verified by PartsTable
NSN 5962-01-078-7029 — this item is cataloged by the U.S. Government under National Stock Number 5962-01-078-7029. Primary manufacturer part number: 56S821.
Features
  • Microcircuit,memory — FSC 5962
  • Body Height: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
  • Specification/standard Data: 81349-MIL-M-38510/203 GOVERNMENT SPECIFICATION
  • Time Rating Per Chacteristic: 75.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 75.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS
  • Voltage Rating and Type Per Characteristic: -1.5 VOLTS MINIMUM POWER SOURCE AND 5.5 VOLTS MAXIMUM POWER SOURCE
  • Memory Capacity: UNKNOWN
  • Test Data Document: 81349-MIL-M-38510 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
  • Terminal Type and Quantity: 16 PRINTED CIRCUIT
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Microcircuit,memory, cataloged under National Stock Number 5962-01-078-7029, 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 Intersil Inc Sub of General Electric Co. Government technical data includes 21 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 29 commercial cross-references from 18 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
NSN5962-01-078-7029
Primary Part Number56S821
Item NameMicrocircuit,memory
FSC / FSG5962 / 59 — No Item Name Available
ManufacturerIntersil Inc Sub of General Electric Co
StatusCANCELLED
Body Height0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN
Specification/standard Data81349-MIL-M-38510/203 GOVERNMENT SPECIFICATION
Time Rating Per Chacteristic75.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 75.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS
Voltage Rating and Type Per Characteristic-1.5 VOLTS MINIMUM POWER SOURCE AND 5.5 VOLTS MAXIMUM POWER SOURCE
Memory CapacityUNKNOWN
Test Data Document81349-MIL-M-38510 SPECIFICATION (INCLUDES ENGINEERING TYPE BULLETINS, BROCHURES,ETC., THAT REFLECT SPECIFICATION TYPE DATA IN SPECIFICATION FORMAT; EXCLUDES COMMERCIAL CATALOGS, INDUSTRY DIRECTORIES, AND SIMILAR TRADE PUBLICATIONS, REFLECTING GENERAL TYPE DATA ON CERTAIN ENVIRONMENTAL AND PERFORMANCE REQUIREMENTS AND TEST CONDITIONS THAT ARE SHOWN AS "TYPICAL", "AVERAGE", "NOMINAL", ETC.).
Terminal Type and Quantity16 PRINTED CIRCUIT
Terminal Surface TreatmentSOLDER
Memory Device TypeROM
Criticality Code JustificationFEAT
Case Outline Source and DesignatorD-2 MIL-M-38510
Inclosure ConfigurationDUAL-IN-LINE
Body Width0.220 INCHES MINIMUM AND 0.310 INCHES MAXIMUM IN
Operating Temp Range+55.0 TO 125.0 CELSIUS DEGC
Input Circuit Pattern10 INPUT
Inclosure MaterialCERAMIC AND GLASS
Storage Temp Range-65.0 TO 150.0 CELSIUS DEGC
Features ProvidedPROGRAMMABLE
Body Length0.840 INCHES MAXIMUM IN
Maximum Power Dissipation Rating739.0 MILLIWATTS
Output Logic FormTRANSISTOR-TRANSISTOR LOGIC
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
5310-00-868-552600648-6 INTERCHANGEABLE
Washer,concave
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5962-01-123-6646932820-44 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5962-01-123-6648932820-58 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5962-01-123-6649932820-97 INTERCHANGEABLE
Microcircuit,digital
Raytheon Company Dba Raytheon
5962-01-123-7988932820-48 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5962-01-123-7989932820-53 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5962-01-123-7990932820-57 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5962-01-123-7992932820-882 INTERCHANGEABLE
Microcircuit,memory
Raytheon Company Dba Raytheon
5962-01-128-329539907-4 INTERCHANGEABLE
Microcircuit,digital
Rockwell Collins, Inc. Dba Rc Displays Systems
5985-01-132-7578912351-1 INTERCHANGEABLE
Adapter,waveguide
Raytheon Company Dba Raytheon Co
Cross-Reference Index
Part NumberManufacturer
56S821 Intersil Inc Sub of General Electric Co (USA)
SM1212 Mmi/amd (USA)
HMI-7611A-2 L3harris Technologies, Inc. (USA)
912351-1 Bae Systems Information and Electronic Systems Integration Inc. (USA)
ROM/PROM Defense Electronics Supply Center (USA)
722901-50 Raytheon Company Div Rmd Strategic (USA)
CM0115-703 Northrop Grumman Corp Electronic Systems Defensive System Div (USA)
JAN-M38510/20302BEX Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
PC73532-1 Rockwell Collins, Inc. Dba Rc Displays Systems (USA)
M38510-20302BEC Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
ROM/PROM Dla Land and Maritime Dba Engineering and Technical Support Div Document Standardization Division (vendor Item Drawings) (USA)
48-050418-02 Northrop Grumman Systems Corporation Div Es Defensive Systems Division (USA)
540723 Renesas Electronics America Inc (USA)
5962-3820302BEX Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
HM7611 Renesas Electronics America Inc (USA)
N82S129 Philips Semiconductors Inc (USA)
M38510/20302BEX Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
HMI7611 L3harris Technologies, Inc. (USA)
5962-3820302BEB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M38510/20302BEB Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5310-00-868-5526INTERCHANGEABLE
WASHER,CONCAVE
00648-6
5962-01-123-6646INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-44
5962-01-123-6648INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-58
5962-01-123-6649INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
932820-97
5962-01-123-7988INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-48
5962-01-123-7989INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-53
5962-01-123-7990INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-57
5962-01-123-7992INTERCHANGEABLE
MICROCIRCUIT,MEMORY
932820-882
5962-01-128-3295INTERCHANGEABLE
MICROCIRCUIT,DIGITAL
39907-4
5985-01-132-7578INTERCHANGEABLE
ADAPTER,WAVEGUIDE
912351-1
5962-01-159-7882INTERCHANGEABLE
MICROCIRCUIT,MEMORY
5355-01-160-6867INTERCHANGEABLE
KNOB
101472N

Frequently Asked Questions

What is NSN 5962-01-078-7029?

NSN 5962-01-078-7029 is a Microcircuit,memory, manufactured by Intersil Inc Sub of General Electric Co, classified under FSC 5962 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5962-01-078-7029?

NSN 5962-01-078-7029 has 29 cross-referenced part numbers: 56S821 (Intersil Inc Sub of General Electric Co), SM1212 (Mmi/amd), HMI-7611A-2 (L3harris Technologies, Inc.), 912351-1 (Bae Systems Information and Electronic Systems Integration Inc.), ROM/PROM (Defense Electronics Supply Center) and 24 more.

What NSN replaces 5962-01-078-7029?

There are 12 known substitutes for 5962-01-078-7029: 5310-00-868-5526, 5962-01-123-6646, 5962-01-123-6648 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 56S821?

Key specifications for 56S821: Body Height: 0.140 INCHES MINIMUM AND 0.185 INCHES MAXIMUM IN; Specification/standard Data: 81349-MIL-M-38510/203 GOVERNMENT SPECIFICATION; Time Rating Per Chacteristic: 75.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, LOW TO HIGH LEVEL OUTPUT AND 75.00 NANOSECONDS MAXIMUM PROPAGATION DELAY TIME, HIGH TO LOW LEVEL OUTPUT NS; Voltage Rating and Type Per Characteristic: -1.5 VOLTS MINIMUM POWER SOURCE AND 5.5 VOLTS MAXIMUM POWER SOURCE. 22 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5962-01-078-7029 still in active supply?

NSN 5962-01-078-7029 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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