PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

66-901007Heat Sink,electrical-Electronic

Communications & Power Industries Llc Div Microwave Power Products Division · NSN 5999-01-190-6903 · FSC 5999 · No Item Name Available
Verified by PartsTable
NSN 5999-01-190-6903 — this item is cataloged by the U.S. Government under National Stock Number 5999-01-190-6903. Primary manufacturer part number: 66-901007.
Features
  • Heat Sink,electrical-Electronic — FSC 5999
  • Surface Treatment: CHROMATE
  • Material: ALUMINUM ALLOY
  • Mounting Slot Length: 0.190 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
  • Mounting Facility Type and Quantity: 2 SLOT SINGLE MOUNTING FACILITY
  • Surface Treatment: CHROMATE
  • Material: ALUMINUM ALLOY
  • Mounting Slot Length: 0.190 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Applications
  • Applications requiring Aluminum Alloy construction
General Description

The Heat Sink,electrical-Electronic, cataloged under National Stock Number 5999-01-190-6903, 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 Communications & Power Industries Llc Div Microwave Power Products Division. Government technical data includes 8 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.

Technical Specifications
ParameterValue
NSN5999-01-190-6903
Primary Part Number66-901007
Item NameHeat Sink,electrical-Electronic
FSC / FSG5999 / 59 — No Item Name Available
ManufacturerCommunications & Power Industries Llc Div Microwave Power Products Division
StatusACTIVE
Surface TreatmentCHROMATE
MaterialALUMINUM ALLOY
Mounting Slot Length0.190 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity2 SLOT SINGLE MOUNTING FACILITY
Surface TreatmentCHROMATE
MaterialALUMINUM ALLOY
Mounting Slot Length0.190 INCHES NOMINAL SINGLE MOUNTING FACILITY IN
Mounting Facility Type and Quantity2 SLOT SINGLE MOUNTING FACILITY
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Shelf Life Code0
Criticality CodeQ
Unit of IssueEA
SMR CodeJZ
Weight0.0200 lbs
Cube0.0030 cu ft
Verified Substitutes 1
2640-00-141-85025791-C INTERCHANGEABLE
Adapter,pneumatic Tire Valve,liq
Schrader-Bridgeport International Inc Dba Schrader Automotive
Cross-Reference Index
Part NumberManufacturer
5791C Aavid Thermalloy Llc (USA)
A3028245-3 Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir (USA)
117607-002 Tdk-Lambda Americas Inc. Div High Power Division (USA)
66-901007 PRIMARY Communications & Power Industries Llc Div Microwave Power Products Division (USA)
5791C Boyd Laconia Llc (USA)
Related Parts
2640-00-141-8502INTERCHANGEABLE
ADAPTER,PNEUMATIC TIRE VALVE,LIQ
5791-C

Frequently Asked Questions

What is NSN 5999-01-190-6903?

NSN 5999-01-190-6903 is a Heat Sink,electrical-Electronic, manufactured by Communications & Power Industries Llc Div Microwave Power Products Division, classified under FSC 5999 (No Item Name Available). Status: active.

What are the part numbers for NSN 5999-01-190-6903?

NSN 5999-01-190-6903 has 5 cross-referenced part numbers: 5791C (Aavid Thermalloy Llc), A3028245-3 (Us Army Communications & Electronics Materiel Readiness Command Logistics Engineering Dir), 117607-002 (Tdk-Lambda Americas Inc. Div High Power Division), 66-901007 (Communications & Power Industries Llc Div Microwave Power Products Division), 5791C (Boyd Laconia Llc).

What NSN replaces 5999-01-190-6903?

There is 1 known substitute for 5999-01-190-6903: 2640-00-141-8502. Verify interchangeability with system specifications before substitution.

What are the specifications of 66-901007?

Key specifications for 66-901007: Overall Length: 1.540 INCHES NOMINAL IN; Surface Treatment: CHROMATE; Overall Height: 0.850 INCHES NOMINAL IN; Material: ALUMINUM ALLOY. 14 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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