PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

302799Heat Sink,electrical-Electronic

Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace · NSN 5999-01-056-8010 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-056-8010 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-056-8010. Primary manufacturer part number: 302799.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Material: ALUMINUM ALLOY
  • Surface Treatment Document and Classification: MIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
  • Unthreaded Mounting Hole Diameter: 0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Body Style: EXTRUDED
  • Surface Treatment: ANODIZE
  • Mounting Facility Type and Quantity: 8 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
  • Material: ALUMINUM ALLOY
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-056-8010, 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 Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace. Government technical data includes 12 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 11 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-056-8010
Primary Part Number302799
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerSymetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace
StatusACTIVE
MaterialALUMINUM ALLOY
Surface Treatment Document and ClassificationMIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
Unthreaded Mounting Hole Diameter0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Body StyleEXTRUDED
Surface TreatmentANODIZE
Mounting Facility Type and Quantity8 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
MaterialALUMINUM ALLOY
Surface Treatment Document and ClassificationMIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
Unthreaded Mounting Hole Diameter0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Body StyleEXTRUDED
Surface TreatmentANODIZE
Mounting Facility Type and Quantity8 UNTHREADED HOLE(S) SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
Successor7045-01-338-6542
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeX
Verified Substitutes 11
Tape,electronic Data Processing
2930-00-246-3293 INTERCHANGEABLE
Slinger,water Pump
5330-00-290-78636149 INTERCHANGEABLE
Gasket
King Engineering Corporation Dba King-Gage Systems
3930-01-172-6771 INTERCHANGEABLE
Handling Attachment,fork Lift Tr
5985-01-181-1679586R450H01 INTERCHANGEABLE
Switch,radio Frequency Transmiss
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5930-01-252-675461-49 INTERCHANGEABLE
Switch,toggle
Heathkit Co Inc Dba Heathkit Educational Systems
5640-01-307-4725 INTERCHANGEABLE
Insulation Sleeving,thermal
6650-01-379-69686149 INTERCHANGEABLE
Mirror,optical Instrument
Oriel Corp
1630-01-448-274761-49 INTERCHANGEABLE
Cylinder,hydraulic Brake,wheel
Aircraft Wheel and Brake, Llc Dba Cleveland Wheel and Brake Systems
6520-01-561-6965310-414 INTERCHANGEABLE
Impression Bite Tray,dental
Dental Health Products Incorporated
Cross-Reference Index
Part NumberManufacturer
302799 Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace (USA)
6149 Langdon Mfg Co Div of Creative Fabric Systems Inc (USA)
Related Parts
SUCCESSOR 7045-01-338-6542 Tape,electronic Data Processing
2930-00-246-3293INTERCHANGEABLE
SLINGER,WATER PUMP
5330-00-290-7863INTERCHANGEABLE
GASKET
6149
3930-01-172-6771INTERCHANGEABLE
HANDLING ATTACHMENT,FORK LIFT TR
5985-01-181-1679INTERCHANGEABLE
SWITCH,RADIO FREQUENCY TRANSMISS
586R450H01
5930-01-252-6754INTERCHANGEABLE
SWITCH,TOGGLE
61-49
5640-01-307-4725INTERCHANGEABLE
INSULATION SLEEVING,THERMAL
6650-01-379-6968INTERCHANGEABLE
MIRROR,OPTICAL INSTRUMENT
6149
1630-01-448-2747INTERCHANGEABLE
CYLINDER,HYDRAULIC BRAKE,WHEEL
61-49
6520-01-561-6965INTERCHANGEABLE
IMPRESSION BITE TRAY,DENTAL
310-414
5310-01-580-2766INTERCHANGEABLE
WASHER,LOCK

Frequently Asked Questions

What is NSN 5999-01-056-8010?

NSN 5999-01-056-8010 is a Heat Sink,electrical-Electronic, manufactured by Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-056-8010?

NSN 5999-01-056-8010 has 2 cross-referenced part numbers: 302799 (Symetrics Industries, Llc Dba Extant Aerospace Div Symetrics Industries Dba Extant Aerospace), 6149 (Langdon Mfg Co Div of Creative Fabric Systems Inc).

What NSN replaces 5999-01-056-8010?

There are 11 known substitutes for 5999-01-056-8010: 7045-01-338-6542, 2930-00-246-3293, 5330-00-290-7863 and 8 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 302799?

Key specifications for 302799: Overall Width: 5.120 INCHES NOMINAL IN; Material: ALUMINUM ALLOY; Surface Treatment Document and Classification: MIL-A-8625,TYPE II,CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE; Unthreaded Mounting Hole Diameter: 0.218 INCHES NOMINAL SINGLE MOUNTING FACILITY IN. 18 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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