PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

078861-0001Heat Sink,electrical-Electronic

Thales Usa, Inc. Div Air Mobility Solutions ("ams") · NSN 5999-01-209-0654 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-209-0654 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-209-0654. Primary manufacturer part number: 078861-0001.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Surface Treatment: ANODIZE
  • Specification/standard Data: 81349-MIL-H-87111/5 GOVERNMENT SPECIFICATION
  • 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
  • Surface Treatment: ANODIZE
  • Specification/standard Data: 81349-MIL-H-87111/5 GOVERNMENT SPECIFICATION
  • 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 5999-01-209-0654, 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 Thales Usa, Inc. Div Air Mobility Solutions ("ams"). Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 8 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-209-0654
Primary Part Number078861-0001
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerThales Usa, Inc. Div Air Mobility Solutions ("ams")
StatusCANCELLED
Surface TreatmentANODIZE
Specification/standard Data81349-MIL-H-87111/5 GOVERNMENT SPECIFICATION
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
Surface TreatmentANODIZE
Specification/standard Data81349-MIL-H-87111/5 GOVERNMENT SPECIFICATION
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
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeZZ
Weight0.0300 lbs
Cube0.0073 cu ft
Verified Substitutes 6
5999-01-183-9737NAS4121-016B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-209-0650NAS4121-017B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-286-7295NAS4121-291B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-423-6866NAS4121-117B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-00-159-8444550611 INTERCHANGEABLE
Mounting Pad,electrical-Electron
L3harris Technologies, Inc Div Space & Airborne Systems
5315-00-965-7102550611 INTERCHANGEABLE
Pin,straight,headless
Hamilton Sundstrand Corporation Dba Collins Aerospace
Cross-Reference Index
Part NumberManufacturer
078861-0001 Thales Usa, Inc. Div Air Mobility Solutions ("ams") (USA)
Z60-0016-003 L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications (USA)
550611 Logimetrics Inc (USA)
M87111/5-1A53 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M87111/05-1A053 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M87111/05-1A53 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
5616268-1 Naval Sea Systems Command (USA)
MIL-H-87111/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5999-01-183-9737SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4121-016B
5999-01-209-0650SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4121-017B
5999-01-286-7295SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4121-291B
5999-01-423-6866SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4121-117B
5999-00-159-8444INTERCHANGEABLE
MOUNTING PAD,ELECTRICAL-ELECTRON
550611
5315-00-965-7102INTERCHANGEABLE
PIN,STRAIGHT,HEADLESS
550611

Frequently Asked Questions

What is NSN 5999-01-209-0654?

NSN 5999-01-209-0654 is a Heat Sink,electrical-Electronic, manufactured by Thales Usa, Inc. Div Air Mobility Solutions ("ams"), classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-209-0654?

NSN 5999-01-209-0654 has 8 cross-referenced part numbers: 078861-0001 (Thales Usa, Inc. Div Air Mobility Solutions ("ams")), Z60-0016-003 (L3harris Technologies, Inc. Dba Harris Corp Div Harris Defense Communications), 550611 (Logimetrics Inc), M87111/5-1A53 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M87111/05-1A053 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 3 more.

What NSN replaces 5999-01-209-0654?

There are 6 known substitutes for 5999-01-209-0654: 5999-01-183-9737, 5999-01-209-0650, 5999-01-286-7295 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 078861-0001?

Key specifications for 078861-0001: Overall Height: 0.500 INCHES NOMINAL IN; Surface Treatment: ANODIZE; Overall Width: 1.400 INCHES NOMINAL IN; Overall Length: 1.880 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-209-0654 still in active supply?

NSN 5999-01-209-0654 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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