PartsTable
Technical Data Sheet
Download PDF

N2456B — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

N2456B: BEARING,ROLLER,TAPERED.

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 2.1250 INCHES NOMINAL IN, cone_width: 2.7500 INCHES NOMINAL IN, bore_diameter: 10.5000 INCHES NOMINAL IN, overall_width: 2.7500 INCHES NOMINAL IN, standout_width: 0.6250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-004-7261, 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
N2456B
NSN: 3110-00-004-7261
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width2.1250 INCHES NOMINAL IN
cone_width2.7500 INCHES NOMINAL IN
bore_diameter10.5000 INCHES NOMINAL IN
overall_width2.7500 INCHES NOMINAL IN
standout_width0.6250 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.2500 INCHES NOMINAL IN
backface_corner_radius0.2500 INCHES NOMINAL IN
overall_outside_diameter15.5000 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-004-7261
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: N2456B · 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
•
CUP WIDTH: 2.1250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
OVERALL OUTSIDE DIAMETER: 15.5000 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.6250 INCHES NOMINAL IN
•
CONE WIDTH: 2.7500 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
CUP WIDTH2.1250 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH2.7500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER15.5000 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.2500 INCHES NOMINAL IN
CONE CORNER RADIUS0.2500 INCHES NOMINAL IN
STANDOUT WIDTH0.6250 INCHES NOMINAL IN
CONE WIDTH2.7500 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER10.5000 INCHES NOMINAL 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 1
A0E1-521-1913658PC41Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy N2456B?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is N2456B?
N2456B is a BEARING,ROLLER,TAPERED.
What parts can replace N2456B?
There is 1 known substitute for N2456B: A0E1-521-1913658PC41. Substitute compatibility should be verified for your specific system.
What is the NSN for N2456B?
N2456B is cataloged in the U.S. Government catalog under NSN 3110-00-004-7261. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — N2456B

✓ 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.