PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

M87111/04-1A05Heat Sink,electrical-Electronic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5999-01-233-0839 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-233-0839 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-233-0839. Primary manufacturer part number: M87111/04-1A05.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Test Data Document: 81349-MIL-H-87111 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.).
  • Material: ALUMINUM ALLOY
  • Mounting Facility Type and Quantity: 1 THREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Surface Treatment: ANODIZE
  • Specification/standard Data: 81349-MIL-H-87111/4 GOVERNMENT SPECIFICATION
  • Thread Class: 2B SINGLE MOUNTING FACILITY
  • Nominal Thread Size: 0.112 INCHES SINGLE MOUNTING FACILITY IN
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-233-0839, is classified within Federal Supply Class 5999 (No Item Name Available) of the Electrical and Electronic Equipment Components group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-233-0839
Primary Part NumberM87111/04-1A05
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusACTIVE
Test Data Document81349-MIL-H-87111 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.).
MaterialALUMINUM ALLOY
Mounting Facility Type and Quantity1 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Surface TreatmentANODIZE
Specification/standard Data81349-MIL-H-87111/4 GOVERNMENT SPECIFICATION
Thread Class2B SINGLE MOUNTING FACILITY
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Test Data Document81349-MIL-H-87111 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.).
MaterialALUMINUM ALLOY
Mounting Facility Type and Quantity1 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Surface TreatmentANODIZE
Specification/standard Data81349-MIL-H-87111/4 GOVERNMENT SPECIFICATION
Thread Class2B SINGLE MOUNTING FACILITY
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
Thread Series DesignatorUNIFIED NATIONAL COARSE (UNC) SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJN
Verified Substitutes 11
5999-01-192-3273NAS4120-02L SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-205-3101NAS4120-04B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-520-5159NAS4120-02B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-134-1783 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-208-7300 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-208-7301 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-208-7302 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-261-5428 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-310-6948 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-330-2659 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Cross-Reference Index
Part NumberManufacturer
M87111/04-1A05 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-H-87111/4 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5999-01-192-3273SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4120-02L
5999-01-205-3101SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4120-04B
5999-01-520-5159SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4120-02B
5999-01-134-1783INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-208-7300INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-208-7301INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-208-7302INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-261-5428INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-310-6948INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-330-2659INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-399-3230INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC

Frequently Asked Questions

What is NSN 5999-01-233-0839?

NSN 5999-01-233-0839 is a Heat Sink,electrical-Electronic, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-233-0839?

NSN 5999-01-233-0839 has 2 cross-referenced part numbers: M87111/04-1A05 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-H-87111/4 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5999-01-233-0839?

There are 11 known substitutes for 5999-01-233-0839: 5999-01-192-3273, 5999-01-205-3101, 5999-01-520-5159 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of M87111/04-1A05?

Key specifications for M87111/04-1A05: Test Data Document: 81349-MIL-H-87111 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.).; Overall Width: 0.390 INCHES NOMINAL IN; Material: ALUMINUM ALLOY; Mounting Facility Type and Quantity: 1 THREADED HOLE(S) SINGLE MOUNTING FACILITY. 20 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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