PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-H-87111/2Heat Sink,electrical-Electronic

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5999-01-413-8580 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-413-8580 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-413-8580. Primary manufacturer part number: MIL-H-87111/2.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Body Style: THERMAL LINK
  • Mounting Facility Type and Quantity: 1 FRICTION SINGLE MOUNTING FACILITY
  • Material: COPPER ALLOY 172
  • Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE
  • Body Style: THERMAL LINK
  • Mounting Facility Type and Quantity: 1 FRICTION SINGLE MOUNTING FACILITY
  • Material: COPPER ALLOY 172
Applications
  • Applications requiring Copper Alloy 172 construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-413-8580, 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 8 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. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-413-8580
Primary Part NumberMIL-H-87111/2
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
Body StyleTHERMAL LINK
Mounting Facility Type and Quantity1 FRICTION SINGLE MOUNTING FACILITY
MaterialCOPPER ALLOY 172
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE
Body StyleTHERMAL LINK
Mounting Facility Type and Quantity1 FRICTION SINGLE MOUNTING FACILITY
MaterialCOPPER ALLOY 172
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 9
5999-01-173-3176NAS4118E01K SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-174-3168NAS4118E05H SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-211-1617NAS4118F12D SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-216-8588NAS4118E16C SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-319-4133NAS4118-G24C SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-328-5037NAS4118E16H SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-372-4067NAS4118F08D SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-411-1080NAS4118G27C SUCCESSOR
Heat Sink,electrical-Electronic
National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
5999-01-498-4393NAS4118F15C 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
MIL-H-87111/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M87111/02-5C20 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
Related Parts
5999-01-173-3176SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118E01K
5999-01-174-3168SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118E05H
5999-01-211-1617SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118F12D
5999-01-216-8588SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118E16C
5999-01-319-4133SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118-G24C
5999-01-328-5037SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118E16H
5999-01-372-4067SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118F08D
5999-01-411-1080SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118G27C
5999-01-498-4393SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
NAS4118F15C

Frequently Asked Questions

What is NSN 5999-01-413-8580?

NSN 5999-01-413-8580 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 5999-01-413-8580?

NSN 5999-01-413-8580 has 2 cross-referenced part numbers: MIL-H-87111/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M87111/02-5C20 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M).

What NSN replaces 5999-01-413-8580?

There are 9 known substitutes for 5999-01-413-8580: 5999-01-173-3176, 5999-01-174-3168, 5999-01-211-1617 and 6 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-H-87111/2?

Key specifications for MIL-H-87111/2: Body Style: THERMAL LINK; Special Features: FINISH IS AN INSULATING COATING.; Mounting Facility Type and Quantity: 1 FRICTION SINGLE MOUNTING FACILITY; Material: COPPER ALLOY 172. 14 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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