PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

NAS4119E03BHeat Sink,electrical-Electronic

National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use · NSN 5999-01-170-8149 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-170-8149 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-170-8149. Primary manufacturer part number: NAS4119E03B.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Overall Diameter: 0.550 INCHES NOMINAL IN
  • Unthreaded Mounting Hole Diameter: 0.255 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Material: COPPER ALLOY
  • Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Material Document and Classification: QQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE
  • Surface Treatment: OXIDE
  • Surface Treatment Document and Classification: MIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE
Applications
  • Applications requiring Copper Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-170-8149, 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 14 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
NSN5999-01-170-8149
Primary Part NumberNAS4119E03B
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
Overall Diameter0.550 INCHES NOMINAL IN
Unthreaded Mounting Hole Diameter0.255 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
MaterialCOPPER ALLOY
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentOXIDE
Surface Treatment Document and ClassificationMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE
Overall Diameter0.550 INCHES NOMINAL IN
Unthreaded Mounting Hole Diameter0.255 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
MaterialCOPPER ALLOY
Mounting Facility Type and Quantity1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Material Document and ClassificationQQ-C-533 FED SPEC SINGLE MATERIAL RESPONSE
Surface TreatmentOXIDE
Surface Treatment Document and ClassificationMIL-F-495 MIL SPEC SINGLE TREATMENT RESPONSE
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor5999-01-083-6304
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeZN
Weight0.0100 lbs
Cube0.0028 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
M87111/03-2B03 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
NAS4119E03B PRIMARY National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
M87111/3-2B03 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
NAS4119 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
Related Parts
SUCCESSOR 5999-01-083-6304 Heat Sink,electrical-Electronic
5999-01-087-3493SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-208-7299SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-211-6670SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-212-0408SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-212-1101SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-215-6876SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-216-2400SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-217-3653SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-217-3654SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-224-6301SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC
5999-01-229-3276SUCCESSOR
HEAT SINK,ELECTRICAL-ELECTRONIC

Frequently Asked Questions

What is NSN 5999-01-170-8149?

NSN 5999-01-170-8149 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 5999-01-170-8149?

NSN 5999-01-170-8149 has 5 cross-referenced part numbers: M87111/03-2B03 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), NAS4119E03B (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), M87111/3-2B03 (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), NAS4119 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use).

What NSN replaces 5999-01-170-8149?

There are 12 known substitutes for 5999-01-170-8149: 5999-01-083-6304, 5999-01-087-3493, 5999-01-208-7299 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of NAS4119E03B?

Key specifications for NAS4119E03B: Overall Diameter: 0.550 INCHES NOMINAL IN; Unthreaded Mounting Hole Diameter: 0.255 INCHES NOMINAL SINGLE MOUNTING FACILITY IN; Material: COPPER ALLOY; Mounting Facility Type and Quantity: 1 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY. 16 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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