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PartsTable / COMPONENT / YR66
YR66 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The YR66 is a the manufacturer industrial component. Key specifications include material: STEEL, construction: ONE-PIECE, outside_diameter: 1.688 INCHES NOMINAL IN, aperture_diameter: 1.266 INCHES NOMINAL IN, fsc_application_data: GASOLINE ENGINE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5365-00-598-1558, 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
YR66
NSN: 5365-00-598-1558
FSC: 5365
CAGE: 66935 — JOHNSON CONTROLS NAVY SYSTEMS, LLC (USA)
SPECIFICATIONS
materialSTEEL
constructionONE-PIECE
outside_diameter1.688 INCHES NOMINAL IN
aperture_diameter1.266 INCHES NOMINAL IN
fsc_application_dataGASOLINE ENGINE
NSN5365-00-598-1558
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available YR66 TITLE COMPONENT PN YR66 MFR YR66
KEY FEATURES
•
APERTURE DIAMETER: 1.266 INCHES NOMINAL IN
•
OUTSIDE DIAMETER: 1.688 INCHES NOMINAL IN
•
FSC APPLICATION DATA: GASOLINE ENGINE
•
CONSTRUCTION: ONE-PIECE
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
APERTURE DIAMETER1.266 INCHES NOMINAL IN
OUTSIDE DIAMETER1.688 INCHES NOMINAL IN
FSC APPLICATION DATAGASOLINE ENGINE
CONSTRUCTIONONE-PIECE
MATERIALSTEEL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
QQ-W-343Interchangeable
interchangeable cross-reference
interchangeable
1236Interchangeable
interchangeable cross-reference
interchangeable
6145PL0745058Interchangeable
interchangeable cross-reference
interchangeable
V5044Interchangeable
interchangeable cross-reference
interchangeable
5534Interchangeable
interchangeable cross-reference
interchangeable
969MInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is YR66?
YR66 is a YR66.
What parts can replace YR66?
There are 19 known substitutes for YR66: QQ-W-343, 1236, 6145PL0745058 and 16 more. Substitute compatibility should be verified for your specific system.
Is YR66 still available?
YR66 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026