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Technical Data Sheet
PartsTable / COMPONENT / LM12710
LM12710 ✓ 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

The CUP,TAPERED ROLLER BEARING is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, overall_width: 0.4750 INCHES NOMINAL IN, outside_diameter: 1.7810 INCHES NOMINAL IN, special_features: DUTY CLASS LM SERIES, style_designator: NORMAL ANGLE, backface_corner_radius: 0.0500 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-004-7172, 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
LM12710
NSN: 3110-00-004-7172
FSC: 3110
CAGE: 0LTL1 — NTN BEARING CORPORATION OF AMERICA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.4750 INCHES NOMINAL IN
outside_diameter1.7810 INCHES NOMINAL IN
special_featuresDUTY CLASS LM SERIES
style_designatorNORMAL ANGLE
backface_corner_radius0.0500 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-004-7172
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: LM12710 · 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
•
BACKFACE CORNER RADIUS: 0.0500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 1.7810 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
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
BACKFACE CORNER RADIUS0.0500 INCHES NOMINAL IN
OVERALL WIDTH0.4750 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
SPECIAL FEATURESDUTY CLASS LM SERIES
OUTSIDE DIAMETER1.7810 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 2
D0AZ1217AInterchangeable
Same NIIN cross-reference
interchangeable
FF-B-187Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is LM12710?
LM12710 is a CUP,TAPERED ROLLER BEARING.
What parts can replace LM12710?
There are 2 known substitutes for LM12710: D0AZ1217A, FF-B-187. Substitute compatibility should be verified for your specific system.
What is the NSN for LM12710?
LM12710 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-004-7172. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026