PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

4205Heat Sink,electrical-Electronic

Thermalloy Co Inc · NSN 5999-01-418-9149 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-418-9149 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-418-9149. Primary manufacturer part number: 4205.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Body Style: CYLINDRICAL
  • Accommodated Device Mounting Hole Pattern Style: THREE HOLE
  • Overall Diameter: 0.0360 INCHES NOMINAL IN
  • Accommodated Device Mounting Hole Quantity: 3
  • Material: ALUMINUM ALLOY
  • Body Style: CYLINDRICAL
  • Accommodated Device Mounting Hole Pattern Style: THREE HOLE
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-418-9149, 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 Thermalloy Co Inc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 3 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
NSN5999-01-418-9149
Primary Part Number4205
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerThermalloy Co Inc
StatusACTIVE
Body StyleCYLINDRICAL
Accommodated Device Mounting Hole Pattern StyleTHREE HOLE
Overall Diameter0.0360 INCHES NOMINAL IN
Accommodated Device Mounting Hole Quantity3
MaterialALUMINUM ALLOY
Body StyleCYLINDRICAL
Accommodated Device Mounting Hole Pattern StyleTHREE HOLE
Overall Diameter0.0360 INCHES NOMINAL IN
Accommodated Device Mounting Hole Quantity3
MaterialALUMINUM ALLOY
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor7025-01-289-5698 (4205)
HAZMATNo
Shelf Life Code0
Criticality CodeN
Unit of IssueEA
SMR CodeJN
Verified Substitutes 12
7025-01-289-56984205 SUCCESSOR
Terminal,data Processing
Tektronix, Inc.
5998-01-374-9285400498-001 SUCCESSOR
Extractor,electrical Card
L3harris Technologies, Inc. Dba L3harris Technologies Div Sas1
6135-00-178-9506 INTERCHANGEABLE
Battery,nonrechargeable
5360-00-250-0098AF43 INTERCHANGEABLE
Spring,helical,compression
Wisconsin Motors, Llc
5310-00-529-410368J INTERCHANGEABLE
Nut,plain,slotted,hexagon
Dana Corp Spicer Transmission Div
3110-00-554-6034 INTERCHANGEABLE
Bearing,ball,annular
2920-00-718-2019MDL3123A INTERCHANGEABLE
Drive,engine,electrical Starter
Prestolite Electric Inc
5905-00-789-5966914072-1 INTERCHANGEABLE
Resistor,variable,wire Wound,pre
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5310-00-884-39954205 INTERCHANGEABLE
Nut,plain,knurled
Jaidinger Manufacturing Co Inc Dba Jaidinger Manufacturing Co Inc
6505-01-131-5620 INTERCHANGEABLE
Multivitamin Solution for Inject
Cross-Reference Index
Part NumberManufacturer
4205 Thermalloy Co Inc (USA)
891713-1 Litton Systems Inc. Div Navigation Systems Division (USA)
19113-1 Thermalloy Co Inc (USA)
Related Parts
SUCCESSOR 7025-01-289-5698 Terminal,data Processing · 4205
5998-01-374-9285SUCCESSOR
EXTRACTOR,ELECTRICAL CARD
400498-001
6135-00-178-9506INTERCHANGEABLE
BATTERY,NONRECHARGEABLE
5360-00-250-0098INTERCHANGEABLE
SPRING,HELICAL,COMPRESSION
AF43
5310-00-529-4103INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
68J
3110-00-554-6034INTERCHANGEABLE
BEARING,BALL,ANNULAR
2920-00-718-2019INTERCHANGEABLE
DRIVE,ENGINE,ELECTRICAL STARTER
MDL3123A
5905-00-789-5966INTERCHANGEABLE
RESISTOR,VARIABLE,WIRE WOUND,PRE
914072-1
5310-00-884-3995INTERCHANGEABLE
NUT,PLAIN,KNURLED
4205
6505-01-131-5620INTERCHANGEABLE
MULTIVITAMIN SOLUTION FOR INJECT
4810-01-131-9397INTERCHANGEABLE
PARTS KIT,SOLENOID VALVE
4205
6505-01-135-2096INTERCHANGEABLE
MULTIVITAMIN SOLUTION FOR INJECT

Frequently Asked Questions

What is NSN 5999-01-418-9149?

NSN 5999-01-418-9149 is a Heat Sink,electrical-Electronic, manufactured by Thermalloy Co Inc, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-418-9149?

NSN 5999-01-418-9149 has 3 cross-referenced part numbers: 4205 (Thermalloy Co Inc), 891713-1 (Litton Systems Inc. Div Navigation Systems Division), 19113-1 (Thermalloy Co Inc).

What NSN replaces 5999-01-418-9149?

There are 12 known substitutes for 5999-01-418-9149: 7025-01-289-5698, 5998-01-374-9285, 6135-00-178-9506 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 4205?

Key specifications for 4205: Body Style: CYLINDRICAL; Overall Height: 0.015 INCHES NOMINAL IN; Accommodated Device Mounting Hole Pattern Style: THREE HOLE; Overall Diameter: 0.0360 INCHES NOMINAL IN. 12 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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