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Technical Data Sheet
PartsTable / COMPONENT / 051228
051228 ✓ 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 special_features: POUCH FOR THE PACEMAKER; DISPOSABLE; ACCESSORY ITEM, end_item_identification: PACEMAKER, NSN: 6515-01-463-0725, part_name_assigned_by_controlling_agency: POUCH F/PACEMAKER DISPOSABLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-4630, 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
051228
NSN: 3110-00-227-4630
FSC: 3110
CAGE: 06889 — BIG JOE MFG CO (USA)
SPECIFICATIONS
special_featuresPOUCH FOR THE PACEMAKER; DISPOSABLE; ACCESSORY ITEM
end_item_identificationPACEMAKER, NSN: 6515-01-463-0725
part_name_assigned_by_controlling_agencyPOUCH F/PACEMAKER DISPOSABLE
NSN3110-00-227-4630
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 051228 · 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
•
OUTSIDE DIAMETER: 3.0000 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
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)
OUTSIDE DIAMETER3.0000 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CL HM SERIES
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
OVERALL WIDTH0.9063 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
14801N PC NO 29Interchangeable
interchangeable cross-reference
interchangeable
11684Interchangeable
interchangeable cross-reference
interchangeable
N11684Interchangeable
interchangeable cross-reference
interchangeable
RC6885Interchangeable
interchangeable cross-reference
interchangeable
322-5Interchangeable
interchangeable cross-reference
interchangeable
322P5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 051228?
051228 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 051228?
There are 23 known substitutes for 051228: 14801N PC NO 29, 11684, N11684 and 20 more. Substitute compatibility should be verified for your specific system.
Is 051228 still available?
051228 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