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156901H1 — RING,BEARING,INNER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

156901H1: RING,BEARING,INNER.

The RING,BEARING,INNER is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 50.0 MILLIMETERS NOMINAL MM, overall_width: 1.7500 INCHES NOMINAL IN, surface_finish: GROUND, style_designator: INNER RING, ROLLER, SINGLE LIP. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-470-3045, 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
156901H1
NSN: 3110-00-470-3045
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 29510 — KOMATSU AMERICAN INTL CO (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter50.0 MILLIMETERS NOMINAL MM
overall_width1.7500 INCHES NOMINAL IN
surface_finishGROUND
style_designatorINNER RING, ROLLER, SINGLE LIP
smallest_outside_diameter2.5648 INCHES NOMINAL IN
standard_tolerance_designationRBEC NO.1
NSN3110-00-470-3045
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 156901H1 · 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
•
SURFACE FINISH: GROUND
•
STYLE DESIGNATOR: INNER RING, ROLLER, SINGLE LIP
•
BORE SHAPE: STRAIGHT
•
SMALLEST OUTSIDE DIAMETER: 2.5648 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
BORE DIAMETER: 50.0 MILLIMETERS NOMINAL MM
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS
SURFACE FINISHGROUND
STYLE DESIGNATORINNER RING, ROLLER, SINGLE LIP
OVERALL WIDTH1.7500 INCHES NOMINAL IN
BORE SHAPESTRAIGHT
SMALLEST OUTSIDE DIAMETER2.5648 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
BORE DIAMETER50.0 MILLIMETERS NOMINAL MM
MATERIALSTEEL OVERALL
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: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 156901H1?
156901H1 is a RING,BEARING,INNER.
What is the NSN for 156901H1?
156901H1 is cataloged in the U.S. Government catalog under NSN 3110-00-470-3045. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
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.