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Technical Data Sheet
PartsTable / COMPONENT / 1820552
1820552 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 0.8750 INCHES NOMINAL IN, bore_diameter: 1.3125 INCHES NOMINAL IN, special_features: DUTY CLASS M SERIES, style_designator: NORMAL ANGLE, cone_corner_radius: 0.0310 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-768-0546, 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
1820552
NSN: 3110-00-768-0546
FSC: 3110
CAGE: 18113 — CHRYSLER CORP HAMTRAMCK ASSEMBLY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width0.8750 INCHES NOMINAL IN
bore_diameter1.3125 INCHES NOMINAL IN
special_featuresDUTY CLASS M SERIES
style_designatorNORMAL ANGLE
cone_corner_radius0.0310 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-768-0546
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1820552 · 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
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
CONE WIDTH: 0.8750 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0310 INCHES NOMINAL IN
•
BORE DIAMETER: 1.3125 INCHES NOMINAL IN
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
CONE WIDTH0.8750 INCHES NOMINAL IN
CONE CORNER RADIUS0.0310 INCHES NOMINAL IN
BORE DIAMETER1.3125 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS M SERIES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
A200248ZInterchangeable
interchangeable cross-reference
interchangeable
7450984Interchangeable
interchangeable cross-reference
interchangeable
70632466Interchangeable
interchangeable cross-reference
interchangeable
317213-5Interchangeable
interchangeable cross-reference
interchangeable
447.082Interchangeable
interchangeable cross-reference
interchangeable
ED00447A0820-S OR 447A-82Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1820552?
1820552 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 1820552?
There are 13 known substitutes for 1820552: A200248Z, 7450984, 70632466 and 10 more. Substitute compatibility should be verified for your specific system.
Is 1820552 still available?
1820552 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