PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

PF523Heat Sink,electrical-Electronic

Boyd Laconia Llc · NSN 5999-01-148-8005 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-148-8005 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-148-8005. Primary manufacturer part number: PF523.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Accommodated Device Mounting Hole Quantity: 2
  • Material: ALUMINUM
  • Accommodated Device Mounting Hole Quantity: 2
  • Material: ALUMINUM
  • 11 verified cross-references
  • Primary manufacturer: Boyd Laconia Llc
Applications
  • Applications requiring Aluminum construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-148-8005, 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 Boyd Laconia Llc. Government technical data includes 4 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 11 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-148-8005
Primary Part NumberPF523
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerBoyd Laconia Llc
StatusCANCELLED
Accommodated Device Mounting Hole Quantity2
MaterialALUMINUM
Accommodated Device Mounting Hole Quantity2
MaterialALUMINUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
Successor5999-01-234-5199 (HS01)
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeZZ
Weight0.0700 lbs
Cube0.0078 cu ft
Verified Substitutes 12
No Item Name Available
5999-01-234-5199HS01 SUCCESSOR
Heat Sink,electrical-Electronic
Apex Microtechnology Corporation Dba Apex Microtechnology Corp Div Apex Microtechnology, Inc
3120-00-159-7148MS17795-120 INTERCHANGEABLE
Bearing,sleeve
American Society for Testing and Materials Dba Astm International
5961-00-256-8965352-0972-011 INTERCHANGEABLE
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Rockwell Collins, Inc. Dba Collins Aerospace Government Systems Div Collins Aerospace - Government Systems
5310-00-264-12605434 INTERCHANGEABLE
Nut,plain,slotted,hexagon
Hme, Inc. Dba Hme Ahrens-Fox
6210-00-299-3052 INTERCHANGEABLE
Fixture,lighting
6685-00-838-5294048302A INTERCHANGEABLE
Gage,pressure,dial Indicating
Ametek, Inc. Div Aerospace & Defense
5975-00-904-62245423 INTERCHANGEABLE
Box Connector,electrical
Abb Installation Products Inc
5955-01-088-1458776834-2 INTERCHANGEABLE
Oscillator,noncrystal Controlled
Raytheon Company Dba Raytheon Co
5340-01-139-299610346-B-1032 INTERCHANGEABLE
Handle
Carey Manufacturing Co, Inc Dba Amatom Electronic Hardware Div Amatom Electronic Hardware
Cross-Reference Index
Part NumberManufacturer
1005130001 Riimic, Llc Dba Sunair Electronics (USA)
5423B Aavid Thermalloy Llc (USA)
9341152 Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate (USA)
60244-95032-1 Textron Systems Corporation Dba Textron Systems Corp (USA)
6261085-1 Naval Sea Systems Command (USA)
1806-0202 Automated Quality Technologies, Inc Dba Lion Precision Div Lion Precision (USA)
5423 Boyd Laconia Llc (USA)
542303B0000 Boyd Laconia Llc (USA)
PF523 PRIMARY Boyd Laconia Llc (USA)
542303B0000 Aavid Thermalloy Llc (USA)
5423 Aavid Thermalloy Llc (USA)
Related Parts
SUCCESSOR 5999-01-234-5199 Heat Sink,electrical-Electronic · HS01
5999-01-186-0343SUCCESSOR
NO ITEM NAME AVAILABLE
3120-00-159-7148INTERCHANGEABLE
BEARING,SLEEVE
MS17795-120
5961-00-256-8965INTERCHANGEABLE
TRANSISTOR
352-0972-011
5310-00-264-1260INTERCHANGEABLE
NUT,PLAIN,SLOTTED,HEXAGON
5434
6210-00-299-3052INTERCHANGEABLE
FIXTURE,LIGHTING
6685-00-838-5294INTERCHANGEABLE
GAGE,PRESSURE,DIAL INDICATING
048302A
5975-00-904-6224INTERCHANGEABLE
BOX CONNECTOR,ELECTRICAL
5423
5955-01-088-1458INTERCHANGEABLE
OSCILLATOR,NONCRYSTAL CONTROLLED
776834-2
5340-01-139-2996INTERCHANGEABLE
HANDLE
10346-B-1032
7510-01-157-6920INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE
5423 1/2 IN.
7510-01-248-7514INTERCHANGEABLE
TAPE,PRESSURE SENSITIVE ADHESIVE

Frequently Asked Questions

What is NSN 5999-01-148-8005?

NSN 5999-01-148-8005 is a Heat Sink,electrical-Electronic, manufactured by Boyd Laconia Llc, classified under FSC 5999 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5999-01-148-8005?

NSN 5999-01-148-8005 has 11 cross-referenced part numbers: 1005130001 (Riimic, Llc Dba Sunair Electronics), 5423B (Aavid Thermalloy Llc), 9341152 (Combat Capabilities Development Command (ccdc) Armaments Center Dba Ccdc Div Logistics Research and Engineering Directorate), 60244-95032-1 (Textron Systems Corporation Dba Textron Systems Corp), 6261085-1 (Naval Sea Systems Command) and 6 more.

What NSN replaces 5999-01-148-8005?

There are 12 known substitutes for 5999-01-148-8005: 5999-01-186-0343, 5999-01-234-5199, 3120-00-159-7148 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of PF523?

Key specifications for PF523: Accommodated Device Mounting Hole Quantity: 2; Overall Width: 1.062 INCHES NOMINAL IN; Overall Height: 0.500 INCHES NOMINAL IN; Overall Length: 1.562 INCHES NOMINAL IN. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5999-01-148-8005 still in active supply?

NSN 5999-01-148-8005 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.
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