PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

206CBHeat Sink,electrical-Electronic

Eg and G Wakefield Engineering · NSN 5999-01-212-0408 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-212-0408 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-212-0408. Primary manufacturer part number: 206CB.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Specification/standard Data: 81349-MIL-H-87111/3 GOVERNMENT SPECIFICATION
  • Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE
  • Surface Treatment: ANODIZE
  • Overall Diameter: 0.510 INCHES NOMINAL IN
  • Material: COPPER ALLOY
  • Surface Treatment Document and Classification: MIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
  • 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 Copper Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-212-0408, 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 Eg and G Wakefield Engineering. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 3 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
NSN5999-01-212-0408
Primary Part Number206CB
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEg and G Wakefield Engineering
StatusCANCELLED
Specification/standard Data81349-MIL-H-87111/3 GOVERNMENT SPECIFICATION
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentANODIZE
Overall Diameter0.510 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Surface Treatment Document and ClassificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
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.).
Specification/standard Data81349-MIL-H-87111/3 GOVERNMENT SPECIFICATION
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentANODIZE
Overall Diameter0.510 INCHES NOMINAL IN
MaterialCOPPER ALLOY
Surface Treatment Document and ClassificationMIL-A-8625 MIL SPEC SINGLE TREATMENT RESPONSE
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.).
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
No Item Name Available
5999-01-089-1006207SB SUCCESSOR
Heat Sink,electrical-Electronic
Eg and G Inc
5999-01-117-8507NAS4119E07C SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-152-5202NAS4119E07H SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-170-8149NAS4119E03B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-211-6669NAS4119E03C SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-211-6671NAS4119E04C SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-211-7886NAS4119E05C SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-216-2398NAS4119E09B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-224-6300NAS4119A14B SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
Cross-Reference Index
Part NumberManufacturer
206CB Eg and G Wakefield Engineering (USA)
M87111/03-2A06 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-H-87111/3 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
10067421-109 Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis (USA)
Related Parts
5999-01-063-2148SUCCESSOR
NO ITEM NAME AVAILABLE
5999-01-089-1006SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
207SB
5999-01-117-8507SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119E07C
5999-01-152-5202SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119E07H
5999-01-170-8149SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119E03B
5999-01-211-6669SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119E03C
5999-01-211-6671SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119E04C
5999-01-211-7886SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119E05C
5999-01-216-2398SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119E09B
5999-01-224-6300SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119A14B
5999-01-247-6075SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119A18H
5999-01-320-7867SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4119A44B

Frequently Asked Questions

What is NSN 5999-01-212-0408?

NSN 5999-01-212-0408 is a Heat Sink,electrical-Electronic, manufactured by Eg and G Wakefield Engineering, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-212-0408?

NSN 5999-01-212-0408 has 4 cross-referenced part numbers: 206CB (Eg and G Wakefield Engineering), M87111/03-2A06 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-H-87111/3 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), 10067421-109 (Honeywell International Inc. Dba Honeywell International Div Aerospace-Minneapolis).

What NSN replaces 5999-01-212-0408?

There are 12 known substitutes for 5999-01-212-0408: 5999-01-063-2148, 5999-01-089-1006, 5999-01-117-8507 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 206CB?

Key specifications for 206CB: Specification/standard Data: 81349-MIL-H-87111/3 GOVERNMENT SPECIFICATION; Overall Height: 0.165 INCHES NOMINAL IN; Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE; Surface Treatment: ANODIZE. 16 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-212-0408 still in active supply?

NSN 5999-01-212-0408 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.
PartsTable Design LLC · partstable.com