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Technical Data Sheet
PartsTable / COMPONENT / 30203
30203 ✓ Verified by PartsTable
Hama · 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

The IDLER ARM,STEERING,VEHICULAR is a Hama industrial component. Key specifications include depth: 2.000 INCHES NOMINAL IN, width: 2.875 INCHES NOMINAL IN, length: 4.562 INCHES NOMINAL IN, material: STEEL CORROSION RESISTING, cup_width: 11.0 MILLIMETERS NOMINAL MM, nut_style: TUBE COUPLING. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-7513, 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
30203
NSN: 3110-00-156-7513
FSC: 3110
CAGE: 24617 — GENERAL MOTORS CORP (USA)
SPECIFICATIONS
depth2.000 INCHES NOMINAL IN
width2.875 INCHES NOMINAL IN
length4.562 INCHES NOMINAL IN
materialSTEEL CORROSION RESISTING
cup_width11.0 MILLIMETERS NOMINAL MM
nut_styleTUBE COUPLING
bore_shapeSTRAIGHT
cone_width12.0 MILLIMETERS NOMINAL MM
nut_height0.620 INCHES NOMINAL IN
head_height0.100 INCHES NOMINAL IN
thread_class3A EXTERNAL A
bore_diameter17.0 MILLIMETERS NOMINAL MM
NSN3110-00-156-7513
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 30203 · Hama ⚠ 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
BORE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: COUNTERBORED OUTER RING, NON-SEPARABLE
•
MATERIAL: STEEL INNER RING
•
LOAD DIRECTION: ANGULAR
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD TOLERANCE DESIGNATIONABEC NO.1
BORE SHAPESTRAIGHT
OVERALL WIDTH12.0 MILLIMETERS NOMINAL MM
STYLE DESIGNATORCOUNTERBORED OUTER RING, NON-SEPARABLE
MATERIALSTEEL INNER RING
MATERIALSTEEL BALL
MATERIALSTEEL OUTER RING
LOAD DIRECTIONANGULAR
SURFACE FINISHGROUND
OVERALL OUTSIDE DIAMETER40.00 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
VP-25-K 750 OHMInterchangeable
interchangeable cross-reference
interchangeable
20S750Interchangeable
interchangeable cross-reference
interchangeable
38YInterchangeable
interchangeable cross-reference
interchangeable
271171Interchangeable
interchangeable cross-reference
interchangeable
RK2000Interchangeable
interchangeable cross-reference
interchangeable
D20077P88Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 30203?
30203 is a IDLER ARM,STEERING,VEHICULAR manufactured by Hama.
What parts can replace 30203?
There are 28 known substitutes for 30203: VP-25-K 750 OHM, 20S750, 38Y and 25 more. Substitute compatibility should be verified for your specific system.
Is 30203 still available?
30203 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