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Technical Data Sheet
PartsTable / COMPONENT / A1-1228N612
A1-1228N612 ✓ 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: 24.00 MILLIMETERS NOMINAL MM, outside_diameter: 130.00 MILLIMETERS NOMINAL MM, special_features: DUTY CLASS JM SERIES, style_designator: NORMAL ANGLE, backface_corner_radius: 2.5 MILLIMETERS NOMINAL MM. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-144-9455, 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
A1-1228N612
NSN: 3110-00-144-9455
FSC: 3110
CAGE: K4998 — MERITOR HEAVY VEHICLE SYSTEMS LTD (GBR)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width24.00 MILLIMETERS NOMINAL MM
outside_diameter130.00 MILLIMETERS NOMINAL MM
special_featuresDUTY CLASS JM SERIES
style_designatorNORMAL ANGLE
backface_corner_radius2.5 MILLIMETERS NOMINAL MM
end_item_identificationHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
NSN3110-00-144-9455
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A1-1228N612 · 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
•
BACKFACE CORNER RADIUS: 2.5 MILLIMETERS NOMINAL MM
•
OUTSIDE DIAMETER: 130.00 MILLIMETERS NOMINAL MM
•
STYLE DESIGNATOR: NORMAL ANGLE
•
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)
OVERALL WIDTH24.00 MILLIMETERS NOMINAL MM
BACKFACE CORNER RADIUS2.5 MILLIMETERS NOMINAL MM
SPECIAL FEATURESDUTY CLASS JM SERIES
END ITEM IDENTIFICATIONHIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
OUTSIDE DIAMETER130.00 MILLIMETERS NOMINAL MM
STYLE DESIGNATORNORMAL ANGLE
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
6317-1Interchangeable
interchangeable cross-reference
interchangeable
300064Interchangeable
interchangeable cross-reference
interchangeable
300060Interchangeable
interchangeable cross-reference
interchangeable
E2B1Interchangeable
interchangeable cross-reference
interchangeable
999E-01804Interchangeable
interchangeable cross-reference
interchangeable
S6135-20756-003Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1-1228N612?
A1-1228N612 is a CUP,TAPERED ROLLER BEARING.
What parts can replace A1-1228N612?
There are 18 known substitutes for A1-1228N612: 6317-1, 300064, 300060 and 15 more. Substitute compatibility should be verified for your specific system.
Is A1-1228N612 still available?
A1-1228N612 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