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79U866 — HEAT SINK,ELECTRICAL-ELECTRONIC

✓ Government record, cited
— · FAN MODULE
PRODUCT OVERVIEW

79U866: HEAT SINK,ELECTRICAL-ELECTRONIC.

HEAT SINK,ELECTRICAL-ELECTRONIC. Key specifications include material: ALUMINUM ALLOY 6063, overall_width: 3.500 INCHES NOMINAL IN, overall_height: 2.687 INCHES NOMINAL IN, overall_length: 6.525 INCHES NOMINAL IN, surface_treatment: CHROMATE, unthreaded_mounting_hole_diameter: 0.128 INCHES NOMINAL SECOND MOUNTING FACILITY IN. This part is cataloged in the U.S.

Government catalog under NSN 5999-01-282-6037, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
79U866
NSN: 5999-01-282-6037
FSC: 5999 — Miscellaneous Electrical and Electronic Components
CAGE: 27315 — MORRIS MATERIAL HANDLING, INC. (USA)
SPECIFICATIONS
materialALUMINUM ALLOY 6063
overall_width3.500 INCHES NOMINAL IN
overall_height2.687 INCHES NOMINAL IN
overall_length6.525 INCHES NOMINAL IN
surface_treatmentCHROMATE
unthreaded_mounting_hole_diameter0.128 INCHES NOMINAL SECOND MOUNTING FACILITY IN
mounting_facility_type_and_quantity1 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY
material_document_and_classificationQQ-A-274 FED SPEC SINGLE MATERIAL RESPONSE
NSN5999-01-282-6037
COMPONENT DIAGRAM
HANDLE 60mm 60mm HOT-PLUG COOL IN HOT OUT DUAL ROTOR HOT-SWAP FAN MODULE | 60mm Dual Rotor | FRONT-TO-BACK Hot-plug | Redundant | TITLE FAN MODULE PN 79U866 MFR OEM HEAT SINK,ELECTRICAL-ELECTRONIC
KEY FEATURES
•
MOUNTING FACILITY TYPE AND QUANTITY: 1 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY
•
UNTHREADED MOUNTING HOLE DIAMETER: 0.128 INCHES NOMINAL SECOND MOUNTING FACILITY IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-A-274 FED SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS
MOUNTING FACILITY TYPE AND QUANTITY1 UNTHREADED HOLE(S) SECOND MOUNTING FACILITY
MOUNTING FACILITY TYPE AND QUANTITY2 UNTHREADED HOLE(S) FIRST MOUNTING FACILITY
OVERALL HEIGHT2.687 INCHES NOMINAL IN
UNTHREADED MOUNTING HOLE DIAMETER0.128 INCHES NOMINAL SECOND MOUNTING FACILITY IN
UNTHREADED MOUNTING HOLE DIAMETER0.438 INCHES NOMINAL FIRST MOUNTING FACILITY IN
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-A-274 FED SPEC SINGLE MATERIAL RESPONSE
OVERALL LENGTH6.525 INCHES NOMINAL IN
OVERALL WIDTH3.500 INCHES NOMINAL IN
SURFACE TREATMENTCHROMATE
MATERIALALUMINUM ALLOY 6063
OTHER ITEMS IN FSC 5999 — Miscellaneous Electrical and Electronic Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5999-00-001-1345 5999-00-001-1346 5999-00-001-1348 5999-00-001-1349 5999-00-001-1355 5999-00-001-1623 5999-00-001-2537 5999-00-001-2539
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 79U866?
79U866 is a HEAT SINK,ELECTRICAL-ELECTRONIC.
What is the NSN for 79U866?
79U866 is cataloged in the U.S. Government catalog under NSN 5999-01-282-6037. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.