PartsTable
Technical Data Sheet
554438 ✓ Verified by PartsTable
· TAPERED BEARING
WHAT YOU NEED TO KNOW
Cup and cone sold separately — confirm both needed Timken series numbers indicate dimensions
Cup and cone NOT sold as set — verify order
PRODUCT OVERVIEW

IMPELLER,WATER PUMP,ENGINE COOLI. Key specifications include flow_angle: 90.0 DEGREES FIRST END, seat_angle: 12.0 DEGREES FIRST END, temp_rating: -65.0 FAHRENHEIT AND 450.0 FAHRENHEIT SINGLE RESPONSE DEGF, thread_class: 2B FIRST END, vacuum_in_torr: 50.8, connection_type: THREADED INTERNAL TUBE FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-435-8917, 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
554438
NSN: 3110-00-435-8917
FSC: 3110
CAGE: 43991 — FAG BEARINGS CORPORATION (USA)
SPECIFICATIONS
flow_angle90.0 DEGREES FIRST END
seat_angle12.0 DEGREES FIRST END
temp_rating-65.0 FAHRENHEIT AND 450.0 FAHRENHEIT SINGLE RESPONSE DEGF
thread_class2B FIRST END
vacuum_in_torr50.8
connection_typeTHREADED INTERNAL TUBE FIRST END
inside_diameter1.094 INCHES MINIMUM AND 1.156 INCHES MAXIMUM IN
connection_styleSWIVEL NUT WITH LOOSE OR INTEGRAL CLINCH SLEEVE FIRST END
outside_diameter1.390 INCHES NOMINAL IN
thread_directionRIGHT-HAND FIRST END
features_providedELECTROSTATIC DISCHARGE CAPABILITY
operating_pressure700.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM LOCATION NOT OTHERWISE SPECIFIED LBS
NSN3110-00-435-8917
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 554438 · OEM ⚠ VERIFY BEFORE ORDERING Cup and cone sold separately — verify you are ordering BOTH parts or the correct component. Always replace cup and cone together — mismatched wear = premature failure ✓ BROKER TIP Taper angle determines axial load capacity. Steeper angle = higher axial load rating. Timken series numbers indicate dimensions — cross-reference carefully PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
LOAD DIRECTION: ANGULAR
INTERNAL CLEARANCE: 0.0008 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN
SURFACE FINISH: GROUND
MATERIAL: STEEL COMP 440A OUTER RING A
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
TECHNICAL CHARACTERISTICS (FLIS)
LOAD DIRECTIONANGULAR
INTERNAL CLEARANCE0.0008 INCHES MINIMUM RADIAL AND 0.0012 INCHES MAXIMUM RADIAL IN
SURFACE FINISHGROUND
SPECIAL FEATURESV GROOVE IN CENTER OF INNER RACE 0.005 IN. MIN 0.015 IN. MAX W BY 45 DEG ANGLE IN
MATERIALSTEEL COMP 440A OUTER RING A
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
MATERIALSTEEL COMP 4340 RETAINER
MATERIALSTEEL COMP 440A BALL A
MATERIALSTEEL COMP 440A INNER RING A
STANDARD TOLERANCE DESIGNATIONABEC NO.5
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
TY232MInterchangeable
interchangeable cross-reference
interchangeable
0659160019Interchangeable
interchangeable cross-reference
interchangeable
SST1-5MInterchangeable
interchangeable cross-reference
interchangeable
320-3-1Interchangeable
interchangeable cross-reference
interchangeable
65302-12559-103Interchangeable
interchangeable cross-reference
interchangeable
BP16589Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 554438?
554438 is a IMPELLER,WATER PUMP,ENGINE COOLI.
What parts can replace 554438?
There are 13 known substitutes for 554438: TY232M, 0659160019, SST1-5M and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 554438?
554438 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-435-8917. This indicates validated use in U.S. government and defense supply chains.
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