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Technical Data Sheet
PartsTable / COMPONENT / S603
S603 ✓ 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

RESISTOR,VARIABLE,NONWIRE WOUND,. Key specifications include phase: THREE INPUT, bore_shape: STRAIGHT, duty_cycle: CONTINUOUS, corner_shape: SQUARE ALL CORNERS, power_rating: 30.000 HORSEPOWER OUTPUT, bore_diameter: 45.00 MILLIMETERS NOMINAL MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-8669, 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
S603
NSN: 3110-00-144-8669
FSC: 3110
CAGE: 70016 — ILSCO CORPORATION DBA UTILCO DIV (USA)
SPECIFICATIONS
phaseTHREE INPUT
bore_shapeSTRAIGHT
duty_cycleCONTINUOUS
corner_shapeSQUARE ALL CORNERS
power_rating30.000 HORSEPOWER OUTPUT
bore_diameter45.00 MILLIMETERS NOMINAL MM
hole_diameter0.636 INCHES MINIMUM AND 0.653 INCHES MAXIMUM IN
overall_width25.0 MILLIMETERS NOMINAL MM
cooling_methodFAN COOLED
load_directionRADIAL
overall_length1.0000 INCHES NOMINAL IN
surface_finishGROUND
NSN3110-00-144-8669
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: S603 · 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
•
BORE DIAMETER: 45.00 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL BALL
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
•
SURFACE FINISH: GROUND
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER45.00 MILLIMETERS NOMINAL MM
MATERIALSTEEL BALL
MATERIALSTEEL INNER RING
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
MATERIALSTEEL OUTER RING
OVERALL WIDTH25.0 MILLIMETERS NOMINAL MM
SURFACE FINISHGROUND
STANDARD TOLERANCE DESIGNATIONABEC NO.1
INTERNAL FIT-UP DESIGNATIONSTANDARD
BORE SHAPESTRAIGHT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 32
10BInterchangeable
interchangeable cross-reference
interchangeable
419191N6Interchangeable
interchangeable cross-reference
interchangeable
MILC5584STYLE1Interchangeable
interchangeable cross-reference
interchangeable
1440-01Interchangeable
interchangeable cross-reference
interchangeable
8-PInterchangeable
interchangeable cross-reference
interchangeable
HACH 1440-01Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is S603?
S603 is a RESISTOR,VARIABLE,NONWIRE WOUND,.
What parts can replace S603?
There are 32 known substitutes for S603: 10B, 419191N6, MILC5584STYLE1 and 29 more. Substitute compatibility should be verified for your specific system.
Is S603 still available?
S603 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