PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

10139686Heat Sink,electrical-Electronic

Nimikkeistokeskus Ncb Finland · NSN 5999-01-330-2659 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-330-2659 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-330-2659. Primary manufacturer part number: 10139686.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Surface Treatment: ANODIZE
  • Overall Diameter: 1.063 INCHES MINIMUM AND 1.074 INCHES MAXIMUM IN
  • Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Specification/standard Data: 81349-MIL-H-87111/4 GOVERNMENT SPECIFICATION
  • Material: ALUMINUM ALLOY
  • Nominal Thread Size: 0.112 INCHES SINGLE MOUNTING FACILITY IN
  • 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.).
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-330-2659, 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 Nimikkeistokeskus Ncb Finland. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 commercial cross-references from 2 manufacturers, 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
NSN5999-01-330-2659
Primary Part Number10139686
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerNimikkeistokeskus Ncb Finland
StatusACTIVE
Surface TreatmentANODIZE
Overall Diameter1.063 INCHES MINIMUM AND 1.074 INCHES MAXIMUM IN
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Specification/standard Data81349-MIL-H-87111/4 GOVERNMENT SPECIFICATION
MaterialALUMINUM ALLOY
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
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.).
Thread Class2B SINGLE MOUNTING FACILITY
Overall Diameter1.063 INCHES MINIMUM AND 1.074 INCHES MAXIMUM IN
Surface TreatmentANODIZE
Mounting Facility Type and Quantity2 THREADED HOLE(S) SINGLE MOUNTING FACILITY
Specification/standard Data81349-MIL-H-87111/4 GOVERNMENT SPECIFICATION
MaterialALUMINUM ALLOY
Nominal Thread Size0.112 INCHES SINGLE MOUNTING FACILITY IN
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.).
Thread Class2B SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0400 lbs
Cube0.0027 cu ft
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
5999-01-233-0839 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-261-5428 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5999-01-310-6948 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Cross-Reference Index
Part NumberManufacturer
10139686 Nimikkeistokeskus Ncb Finland (FIN)
M87111/04-1H03 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
5999-01-233-0839INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-261-5428INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-310-6948INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-399-3230INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC

Frequently Asked Questions

What is NSN 5999-01-330-2659?

NSN 5999-01-330-2659 is a Heat Sink,electrical-Electronic, manufactured by Nimikkeistokeskus Ncb Finland, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-330-2659?

NSN 5999-01-330-2659 has 3 cross-referenced part numbers: 10139686 (Nimikkeistokeskus Ncb Finland), M87111/04-1H03 (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 5999-01-330-2659?

There are 11 known substitutes for 5999-01-330-2659: 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 10139686?

Key specifications for 10139686: Surface Treatment: ANODIZE; Overall Diameter: 1.063 INCHES MINIMUM AND 1.074 INCHES MAXIMUM IN; Mounting Facility Type and Quantity: 2 THREADED HOLE(S) SINGLE MOUNTING FACILITY; Specification/standard Data: 81349-MIL-H-87111/4 GOVERNMENT SPECIFICATION. 18 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com