PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

6509644Heat Sink,electrical-Electronic

Naval Sea Systems Command · NSN 5999-01-390-7198 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-390-7198 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-390-7198. Primary manufacturer part number: 6509644.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Surface Treatment: ANODIZE
  • Mounting Facility Type and Quantity: 1 FRICTION SINGLE MOUNTING FACILITY
  • Material Document and Classification: QQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE
  • Material: ALUMINUM ALLOY 1100
  • Surface Treatment Document and Classification: MIL-A-8625, TYPE 2, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
  • Body Style: VERTICALLY MOUNTED W/BOARD MOUNTING TABS
  • Surface Treatment: ANODIZE
Applications
  • Applications requiring Aluminum Alloy 1100 construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-390-7198, 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 Naval Sea Systems Command. 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. 2 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-390-7198
Primary Part Number6509644
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerNaval Sea Systems Command
StatusACTIVE
Surface TreatmentANODIZE
Mounting Facility Type and Quantity1 FRICTION SINGLE MOUNTING FACILITY
Material Document and ClassificationQQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE
MaterialALUMINUM ALLOY 1100
Surface Treatment Document and ClassificationMIL-A-8625, TYPE 2, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
Body StyleVERTICALLY MOUNTED W/BOARD MOUNTING TABS
Surface TreatmentANODIZE
Mounting Facility Type and Quantity1 FRICTION SINGLE MOUNTING FACILITY
Material Document and ClassificationQQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE
MaterialALUMINUM ALLOY 1100
Surface Treatment Document and ClassificationMIL-A-8625, TYPE 2, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
Body StyleVERTICALLY MOUNTED W/BOARD MOUNTING TABS
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Unit of IssueEA
SMR CodeJ
Verified Substitutes 2
6625-00-892-45557209955P1 SUCCESSOR
Probe,test
Lockheed Martin Corporation Div Rms
6625-01-294-2333631-E428 INTERCHANGEABLE
Voltmeter
Phaostron Instrument and Electronic Company
Cross-Reference Index
Part NumberManufacturer
363 Cts Electronic Components (california) Inc Dba Ierc Div Cts Electronic Components (USA)
6509644 PRIMARY Naval Sea Systems Command (USA)
Related Parts
6625-00-892-4555SUCCESSOR
PROBE,TEST
7209955P1
6625-01-294-2333INTERCHANGEABLE
VOLTMETER
631-E428

Frequently Asked Questions

What is NSN 5999-01-390-7198?

NSN 5999-01-390-7198 is a Heat Sink,electrical-Electronic, manufactured by Naval Sea Systems Command, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-390-7198?

NSN 5999-01-390-7198 has 2 cross-referenced part numbers: 363 (Cts Electronic Components (california) Inc Dba Ierc Div Cts Electronic Components), 6509644 (Naval Sea Systems Command).

What NSN replaces 5999-01-390-7198?

There are 2 known substitutes for 5999-01-390-7198: 6625-00-892-4555, 6625-01-294-2333. Verify interchangeability with system specifications before substitution.

What are the specifications of 6509644?

Key specifications for 6509644: Surface Treatment: ANODIZE; Mounting Facility Type and Quantity: 1 FRICTION SINGLE MOUNTING FACILITY; Material Document and Classification: QQ-A-250 FED SPEC SINGLE MATERIAL RESPONSE; Material: ALUMINUM ALLOY 1100. 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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