PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS4118E01KHeat Sink,electrical-Electronic

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5999-01-173-3176 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-173-3176 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-173-3176. Primary manufacturer part number: NAS4118E01K.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Body Style: THERMAL LINK
  • Surface Treatment: NICKEL
  • Material: COPPER ALLOY
  • Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Specification/standard Data: 80205-NAS4118E01K NATIONAL STD/SPEC
  • Unthreaded Mounting Hole Diameter: 0.071 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE
Applications
  • Applications requiring Copper Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-173-3176, 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 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use. Government technical data includes 20 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-173-3176
Primary Part NumberNAS4118E01K
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerNational Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use
StatusACTIVE
Body StyleTHERMAL LINK
Surface TreatmentNICKEL
MaterialCOPPER ALLOY
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Specification/standard Data80205-NAS4118E01K NATIONAL STD/SPEC
Unthreaded Mounting Hole Diameter0.071 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE
Overall Diameter0.220 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
Test Data Document80205-NASS4118 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Body StyleTHERMAL LINK
Surface TreatmentNICKEL
MaterialCOPPER ALLOY
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Specification/standard Data80205-NAS4118E01K NATIONAL STD/SPEC
Unthreaded Mounting Hole Diameter0.071 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE OR MIL-C-81021 MIL SPEC SINGLE MATERIAL RESPONSE
Overall Diameter0.220 INCHES NOMINAL IN
Surface Treatment Document and ClassificationQQ-N-290,CLASS 2 FED SPEC SINGLE TREATMENT RESPONSE
Test Data Document80205-NASS4118 STANDARD (INCLUDES INDUSTRY OR ASSOCIATION STANDARDS, INDIVIDUAL MANUFACTUREER STANDARDS, ETC.).
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-01-105-4991
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJZ
Weight0.0600 lbs
Cube0.0090 cu ft
Verified Substitutes 12
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Heat Sink,electrical-Electronic
Cross-Reference Index
Part NumberManufacturer
M87111/02-2N01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
M87111-2-2N01 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
MIL-H-87111/2 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS4118E01K PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
NAS4118 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
SUCCESSOR 5999-01-105-4991 Heat Sink,electrical-Electronic
5999-01-211-1616SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-211-1618SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-213-8644SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-246-9666SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-276-1197SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-297-0849SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-324-0542SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-326-8182SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-339-2090SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-353-2805SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-413-8580SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC

Frequently Asked Questions

What is NSN 5999-01-173-3176?

NSN 5999-01-173-3176 is a Heat Sink,electrical-Electronic, manufactured by National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-173-3176?

NSN 5999-01-173-3176 has 5 cross-referenced part numbers: M87111/02-2N01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), M87111-2-2N01 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), MIL-H-87111/2 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NAS4118E01K (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), NAS4118 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5999-01-173-3176?

There are 12 known substitutes for 5999-01-173-3176: 5999-01-105-4991, 5999-01-211-1616, 5999-01-211-1618 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS4118E01K?

Key specifications for NAS4118E01K: Body Style: THERMAL LINK; Surface Treatment: NICKEL; Material: COPPER ALLOY; Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY. 22 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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