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203-034-0001 — BEARING,BALL,DUPLEX

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

203-034-0001: BEARING,BALL,DUPLEX.

The BEARING,BALL,DUPLEX is a the manufacturer industrial component. Key specifications include material: GREASE LUBRICATION, bore_diameter: 0.7498 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN, overall_width: 0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, load_direction: ANGULAR, surface_finish: UNGROUND, style_designator: COUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-028-4470, 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
203-034-0001
NSN: 3110-01-028-4470
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 78118 — MPB CORPORATION DBA MPB CORP (USA)
SPECIFICATIONS
materialGREASE LUBRICATION
bore_diameter0.7498 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
overall_width0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
load_directionANGULAR
surface_finishUNGROUND
shield_quantity1
style_designatorCOUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING
features_providedALIGNING RING
bearing_preload_rating3.0 POUNDS NOMINAL LBS
overall_outside_diameter1.1871 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
material_document_and_classificationUNABLE TO DECODE
lubrication_material_document_and_classificationMIL-G-23827 MIL SPEC SINGLE MATERIAL RESPONSE
NSN3110-01-028-4470
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 203-034-0001 · 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
•
BEARING PRELOAD RATING: 3.0 POUNDS NOMINAL LBS
•
SURFACE FINISH: UNGROUND
•
SHIELD QUANTITY: 1
•
STYLE DESIGNATOR: COUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING
•
MATERIAL DOCUMENT AND CLASSIFICATION: UNABLE TO DECODE
•
OVERALL OUTSIDE DIAMETER: 1.1871 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
•
FEATURES PROVIDED: ALIGNING RING
TECHNICAL CHARACTERISTICS
BEARING PRELOAD RATING3.0 POUNDS NOMINAL LBS
SURFACE FINISHUNGROUND
SHIELD QUANTITY1
STYLE DESIGNATORCOUNTERBORED OUTER RINGS, NON-SEPARABLE, TANDEM MOUNTING
MATERIAL DOCUMENT AND CLASSIFICATIONUNABLE TO DECODE
OVERALL WIDTH0.4980 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER1.1871 INCHES MINIMUM AND 1.1875 INCHES MAXIMUM IN
FEATURES PROVIDEDALIGNING RING
LOAD DIRECTIONANGULAR
BORE DIAMETER0.7498 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 203-034-0001?
203-034-0001 is a BEARING,BALL,DUPLEX.
What is the NSN for 203-034-0001?
203-034-0001 is cataloged in the U.S. Government catalog under NSN 3110-01-028-4470. This indicates validated use in U.S. government and defense supply chains.
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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.