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6539-11-166-4044 — LUBRICATOR,JET,TRANSMISSION

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

6539-11-166-4044: LUBRICATOR,JET,TRANSMISSION.

The LUBRICATOR,JET,TRANSMISSION is a the manufacturer industrial component. Key specifications include overall_height: 1.750 INCHES NOMINAL IN, overall_length: 14.060 INCHES NOMINAL IN, overall_diameter: 6.400 INCHES NOMINAL IN, end_item_identification: 1615-01-268-4420; 1680-01-411-7040; USED ON THE MAIN GEARBOX OF THE CH/MH53E HELICOPTER. This part is cataloged in the U.S.

Government catalog under NSN 1615-01-448-5495, 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
6539-11-166-4044
NSN: 1615-01-448-5495
FSC: 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components
CAGE: 78286 — SIKORSKY AIRCRAFT CORPORATION DBA SIKORSKY AIRCRAFT CORP (USA)
SPECIFICATIONS
overall_height1.750 INCHES NOMINAL IN
overall_length14.060 INCHES NOMINAL IN
overall_diameter6.400 INCHES NOMINAL IN
end_item_identification1615-01-268-4420; 1680-01-411-7040; USED ON THE MAIN GEARBOX OF THE CH/MH53E HELICOPTER
NSN1615-01-448-5495
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LUBRICATOR,JET,TRANSMISSION TITLE COMPONENT PN 6539-11-166-4044 MFR LUBRICATOR,JET,TRANSMI
KEY FEATURES
•
OVERALL DIAMETER: 6.400 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT1.750 INCHES NOMINAL IN
OVERALL DIAMETER6.400 INCHES NOMINAL IN
OVERALL LENGTH14.060 INCHES NOMINAL IN
END ITEM IDENTIFICATION1615-01-268-4420; 1680-01-411-7040; USED ON THE MAIN GEARBOX OF THE CH/MH53E HELICOPTER
OTHER ITEMS IN FSC 1615 — Helicopter Rotor Blades, Drive Mechanisms and Components
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
1615-00-001-1399 1615-00-001-1400 1615-00-001-1774 1615-00-001-2675 1615-00-001-6441 1615-00-001-6442 1615-00-003-1146 1615-00-003-1147
SUBSTITUTES & CROSS-REFERENCES 1
653911-11664Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)Demilitarization required — critical (Q)
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FREQUENTLY ASKED QUESTIONS
What is 6539-11-166-4044?
6539-11-166-4044 is a LUBRICATOR,JET,TRANSMISSION.
What parts can replace 6539-11-166-4044?
There is 1 known substitute for 6539-11-166-4044: 653911-11664. Substitute compatibility should be verified for your specific system.
What is the NSN for 6539-11-166-4044?
6539-11-166-4044 is cataloged in the U.S. Government catalog under NSN 1615-01-448-5495. 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.