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4508445 — OIL COOLER INLET

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

4508445: OIL COOLER INLET.

The OIL COOLER INLET is a the manufacturer industrial component. Key specifications include end_item_identification: CRITICAL APPLICATION ITEM (CAI);CH-53K SIKORSKY HEAVY LIFT HELICOPTER, criticality_code_justification: AGAV, part_name_assigned_by_controlling_agency: DUCT,APU FAN. This part is cataloged in the U.S.

Government catalog under NSN 1650-01-667-2419, 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
4508445
NSN: 1650-01-667-2419
FSC: 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
end_item_identificationCRITICAL APPLICATION ITEM (CAI);CH-53K SIKORSKY HEAVY LIFT HELICOPTER
criticality_code_justificationAGAV
part_name_assigned_by_controlling_agencyDUCT,APU FAN
NSN1650-01-667-2419
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available OIL COOLER INLET TITLE COMPONENT PN 4508445 MFR OIL COOLER INLET
KEY FEATURES
•
CRITICALITY CODE JUSTIFICATION: AGAV
TECHNICAL CHARACTERISTICS
CRITICALITY CODE JUSTIFICATIONAGAV
PART NAME ASSIGNED BY CONTROLLING AGENCYDUCT,APU FAN
END ITEM IDENTIFICATIONCRITICAL APPLICATION ITEM (CAI);CH-53K SIKORSKY HEAVY LIFT HELICOPTER
OTHER ITEMS IN FSC 1650 — Aircraft Hydraulic, Vacuum, and De-icing System Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1650-00-011-0886 1650-00-013-3761 1650-00-059-7742 1650-00-101-7836 1650-00-138-2779 1650-00-162-3907 1650-00-594-3500 1650-00-658-8056
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4508445?
4508445 is a OIL COOLER INLET.
What is the NSN for 4508445?
4508445 is cataloged in the U.S. Government catalog under NSN 1650-01-667-2419. 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.