PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

403AHeat Sink,electrical-Electronic

Eg and G Wakefield Engineering · NSN 5999-01-023-4509 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-023-4509 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-023-4509. Primary manufacturer part number: 403A.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
  • 2 verified cross-references
  • Primary manufacturer: Eg and G Wakefield Engineering
Applications
  • Industrial maintenance and repair
  • Government and military logistics
  • Equipment overhaul and refurbishment
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-023-4509, 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 Eg and G Wakefield Engineering. Government technical data includes 2 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. 8 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-023-4509
Primary Part Number403A
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerEg and G Wakefield Engineering
StatusACTIVE
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Reference Number Differentiating CharacteristicsMATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor6625-00-691-6608 (403A)
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Weight0.0300 lbs
Cube0.0318 cu ft
Verified Substitutes 8
6625-00-691-6608403A SUCCESSOR
Generator,noise
Kay Elemetrics Corporation
Voltmeter
5999-00-111-2018 INTERCHANGEABLE
Heat Sink,electrical-Electronic
5960-00-134-6031 INTERCHANGEABLE
Electron Tube
5975-00-153-677052C14 INTERCHANGEABLE
Cover,junction Box
Abb Installation Products Inc
3110-00-155-6387281478-112 INTERCHANGEABLE
Bearing,ball,annular
Naval Sea Systems Command
6240-00-182-7717 INTERCHANGEABLE
Lamp,incandescent
5999-01-082-1649 INTERCHANGEABLE
Heat Sink,electrical-Electronic
Cross-Reference Index
Part NumberManufacturer
403A Eg and G Wakefield Engineering (USA)
NC403-A Eg and G Wakefield Engineering (USA)
Related Parts
SUCCESSOR 6625-00-691-6608 Generator,noise · 403A
6625-00-996-6340SUCCESSOR
VOLTMETER
5999-00-111-2018INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC
5960-00-134-6031INTERCHANGEABLE
ELECTRON TUBE
5975-00-153-6770INTERCHANGEABLE
COVER,JUNCTION BOX
52C14
3110-00-155-6387INTERCHANGEABLE
BEARING,BALL,ANNULAR
281478-112
6240-00-182-7717INTERCHANGEABLE
LAMP,INCANDESCENT
5999-01-082-1649INTERCHANGEABLE
HEAT SINK,ELECTRICAL-ELECTRONIC

Frequently Asked Questions

What is NSN 5999-01-023-4509?

NSN 5999-01-023-4509 is a Heat Sink,electrical-Electronic, manufactured by Eg and G Wakefield Engineering, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-023-4509?

NSN 5999-01-023-4509 has 2 cross-referenced part numbers: 403A (Eg and G Wakefield Engineering), NC403-A (Eg and G Wakefield Engineering).

What NSN replaces 5999-01-023-4509?

There are 8 known substitutes for 5999-01-023-4509: 6625-00-691-6608, 6625-00-996-6340, 5999-00-111-2018 and 5 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 403A?

Key specifications for 403A: Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS; Reference Number Differentiating Characteristics: MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS. 2 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com