PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

638-8859-001Heat Sink,electrical-Electronic

Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems · NSN 5999-01-209-4597 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-209-4597 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-209-4597. Primary manufacturer part number: 638-8859-001.
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
  • 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
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-209-4597, 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 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 9 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 10 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-209-4597
Primary Part Number638-8859-001
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRockwell Collins, Inc. Div Collins Aerospace - Mission Systems
StatusCANCELLED
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
Surface TreatmentANODIZE
Specification/standard Data81349-MIL-H-87111/5 GOVERNMENT SPECIFICATION
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5999-01-043-4920
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJZ
Weight0.0350 lbs
Cube0.0053 cu ft
Verified Substitutes 10
Heat Sink,electrical-Electronic
5999-01-056-4083800482-9 SUCCESSOR
Heat Sink,electrical-Electronic
Raytheon Company Dba Raytheon
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
5930-00-234-4901BE54 INTERCHANGEABLE
Switch,box
Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir
6610-00-390-84166017B INTERCHANGEABLE
Accelerometer,mechanical
Novatronics Inccurtiss-Wright Controls Em Technologies
3120-01-076-3048 INTERCHANGEABLE
Bushing,sleeve
5120-01-399-9051 INTERCHANGEABLE
Wrench,torque
Cross-Reference Index
Part NumberManufacturer
638-8859-001 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
638-8859-001 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
MIL-H-87111/5 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
352-9642-040 Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems (USA)
M87111/05-1A13 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M87111/5-1A13 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M87111/05-1A013 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
352-9642-040 Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems (USA)
6017B Thermalloy Co Inc (USA)
Related Parts
SUCCESSOR 5999-01-043-4920 Heat Sink,electrical-Electronic
5999-01-056-4083SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
800482-9
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
5930-00-234-4901INTERCHANGEABLE
SWITCH,BOX
BE54
6610-00-390-8416INTERCHANGEABLE
ACCELEROMETER,MECHANICAL
6017B
3120-01-076-3048INTERCHANGEABLE
BUSHING,SLEEVE
5120-01-399-9051INTERCHANGEABLE
WRENCH,TORQUE

Frequently Asked Questions

What is NSN 5999-01-209-4597?

NSN 5999-01-209-4597 is a Heat Sink,electrical-Electronic, manufactured by Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-209-4597?

NSN 5999-01-209-4597 has 9 cross-referenced part numbers: 638-8859-001 (Rockwell Collins, Inc. Div Collins Aerospace - Mission Systems), 638-8859-001 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), MIL-H-87111/5 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 352-9642-040 (Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems), M87111/05-1A13 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M) and 4 more.

What NSN replaces 5999-01-209-4597?

There are 10 known substitutes for 5999-01-209-4597: 5999-01-043-4920, 5999-01-056-4083, 5999-01-183-9737 and 7 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 638-8859-001?

Key specifications for 638-8859-001: Overall Height: 0.190 INCHES NOMINAL IN; Overall Width: 0.530 INCHES NOMINAL 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.).; Overall Length: 1.250 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-209-4597 still in active supply?

NSN 5999-01-209-4597 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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