PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

479643Heat Sink,electrical-Electronic

Raytheon Company Dba Raytheon Co · NSN 5999-01-237-5377 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-237-5377 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-237-5377. Primary manufacturer part number: 479643.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Overall Diameter: 1.125 INCHES NOMINAL IN
  • Surface Treatment: ANODIZE
  • Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES
  • Material Document and Classification: QQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE
  • Surface Treatment Document and Classification: MIL-A-8625,TYPE 3,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
  • Material: ALUMINUM ALLOY
  • Unthreaded Mounting Hole Diameter: 0.067 INCHES NOMINAL ALL MOUNTING FACILITIES IN
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-237-5377, 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 Raytheon Company Dba Raytheon Co. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 4 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
NSN5999-01-237-5377
Primary Part Number479643
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerRaytheon Company Dba Raytheon Co
StatusACTIVE
Overall Diameter1.125 INCHES NOMINAL IN
Surface TreatmentANODIZE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 3,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
MaterialALUMINUM ALLOY
Unthreaded Mounting Hole Diameter0.067 INCHES NOMINAL ALL MOUNTING FACILITIES IN
Overall Diameter1.125 INCHES NOMINAL IN
Surface TreatmentANODIZE
Mounting Facility Type and Quantity3 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES
Material Document and ClassificationQQ-A-225/6,T4 FED SPEC SINGLE MATERIAL RESPONSE
Surface Treatment Document and ClassificationMIL-A-8625,TYPE 3,CLASS 1 MIL SPEC SINGLE TREATMENT RESPONSE
MaterialALUMINUM ALLOY
Unthreaded Mounting Hole Diameter0.067 INCHES NOMINAL ALL MOUNTING FACILITIES IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 12
5910-00-045-8579301-000-C0G0-569C INTERCHANGEABLE
Capacitor,fixed,ceramic Dielectr
Tusonix, Llc
2920-00-084-2109TX2477 INTERCHANGEABLE
Coil,magneto
Fairbanks Morse, Llc
3110-00-100-308912057 INTERCHANGEABLE
Cone and Rollers,tapered Roller
Dressta North America Ltd
1650-00-133-8195CV21-501505-1 INTERCHANGEABLE
Valve,shutoff
Triumph Aerostructures, Llc Dba Triumph Aerostructures - Vought Integrated Programs Division
2530-00-371-4143FC7502C INTERCHANGEABLE
Brake Lining Kit
Federal Mogul Corp Sub Wagner Brake Moog Automotive Div
4130-00-844-7050C-163 INTERCHANGEABLE
Filter-Drier,refrigerant
Parker-Hannifin Corp Div Sporlan Division
5930-01-075-0660 INTERCHANGEABLE
Switch,code Indicating Wheel
3230-01-095-247612057 INTERCHANGEABLE
Blade,circular Saw,woodcutting
Porter Cable/delta
5950-01-185-9427082-12057 INTERCHANGEABLE
Transformer,power
Power-One DC Power Supplies
5845-01-210-565612057 INTERCHANGEABLE
Module,memory,digit
Nautel C-Tech Limited
Cross-Reference Index
Part NumberManufacturer
479643 Raytheon Company (USA)
12057 Thermalloy Co Inc (USA)
479643 PRIMARY Raytheon Company Dba Raytheon Co (USA)
479643 Raytheon Company Div Corp (USA)
Related Parts
5910-00-045-8579INTERCHANGEABLE
CAPACITOR,FIXED,CERAMIC DIELECTR
301-000-C0G0-569C
2920-00-084-2109INTERCHANGEABLE
COIL,MAGNETO
TX2477
3110-00-100-3089INTERCHANGEABLE
CONE AND ROLLERS,TAPERED ROLLER
12057
1650-00-133-8195INTERCHANGEABLE
VALVE,SHUTOFF
CV21-501505-1
2530-00-371-4143INTERCHANGEABLE
BRAKE LINING KIT
FC7502C
4130-00-844-7050INTERCHANGEABLE
FILTER-DRIER,REFRIGERANT
C-163
5930-01-075-0660INTERCHANGEABLE
SWITCH,CODE INDICATING WHEEL
3230-01-095-2476INTERCHANGEABLE
BLADE,CIRCULAR SAW,WOODCUTTING
12057
5950-01-185-9427INTERCHANGEABLE
TRANSFORMER,POWER
082-12057
5845-01-210-5656INTERCHANGEABLE
MODULE,MEMORY,DIGIT
12057
5998-01-223-6360INTERCHANGEABLE
CIRCUIT CARD ASSEMBLY
1620-01-334-7546INTERCHANGEABLE
DRAG LINK,LANDING GEAR
1205-7

Frequently Asked Questions

What is NSN 5999-01-237-5377?

NSN 5999-01-237-5377 is a Heat Sink,electrical-Electronic, manufactured by Raytheon Company Dba Raytheon Co, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-237-5377?

NSN 5999-01-237-5377 has 4 cross-referenced part numbers: 479643 (Raytheon Company), 12057 (Thermalloy Co Inc), 479643 (Raytheon Company Dba Raytheon Co), 479643 (Raytheon Company Div Corp).

What NSN replaces 5999-01-237-5377?

There are 12 known substitutes for 5999-01-237-5377: 5910-00-045-8579, 2920-00-084-2109, 3110-00-100-3089 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 479643?

Key specifications for 479643: Overall Diameter: 1.125 INCHES NOMINAL IN; Surface Treatment: ANODIZE; Overall Height: 0.375 INCHES NOMINAL IN; Mounting Facility Type and Quantity: 3 UNTHREADED HOLE(S) ALL MOUNTING FACILITIES. 16 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