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HH221449B2-254 — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

HH221449B2-254: CONE AND ROLLERS,TAPERED ROLLER.

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: COPPER ALLOY RETAINER, cone_width: 2.2550 INCHES MINIMUM AND 2.2750 INCHES MAXIMUM IN, bore_diameter: 4.0000 INCHES MINIMUM AND 4.0010 INCHES MAXIMUM IN, special_features: STABILIZED FOR OPERATION AT MINUS 65 DEG F TO PLUS 250 DEG F DEGF, style_designator: NORMAL ANGLE, cone_corner_radius: 0.3020 INCHES MINIMUM AND 0.3220 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-894-0433, 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
HH221449B2-254
NSN: 3110-00-894-0433
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialCOPPER ALLOY RETAINER
cone_width2.2550 INCHES MINIMUM AND 2.2750 INCHES MAXIMUM IN
bore_diameter4.0000 INCHES MINIMUM AND 4.0010 INCHES MAXIMUM IN
special_featuresSTABILIZED FOR OPERATION AT MINUS 65 DEG F TO PLUS 250 DEG F DEGF
style_designatorNORMAL ANGLE
cone_corner_radius0.3020 INCHES MINIMUM AND 0.3220 INCHES MAXIMUM IN
retainer_fabrication_methodMACHINED
standard_tolerance_designationAFBMA CLASS 2
material_document_and_classificationSB3403A1,78286 MFR REF SINGLE MATERIAL RESPONSE ROLLER
NSN3110-00-894-0433
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: HH221449B2-254 · 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
•
RETAINER FABRICATION METHOD: MACHINED
•
STYLE DESIGNATOR: NORMAL ANGLE
•
MATERIAL DOCUMENT AND CLASSIFICATION: SB3403A1,78286 MFR REF SINGLE MATERIAL RESPONSE CONE
•
CONE CORNER RADIUS: 0.3020 INCHES MINIMUM AND 0.3220 INCHES MAXIMUM IN
•
CONE WIDTH: 2.2550 INCHES MINIMUM AND 2.2750 INCHES MAXIMUM 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
RETAINER FABRICATION METHODMACHINED
STYLE DESIGNATORNORMAL ANGLE
MATERIAL DOCUMENT AND CLASSIFICATIONSB3403A1,78286 MFR REF SINGLE MATERIAL RESPONSE CONE
MATERIAL DOCUMENT AND CLASSIFICATIONSB3403A1,78286 MFR REF SINGLE MATERIAL RESPONSE RETAINER
MATERIAL DOCUMENT AND CLASSIFICATIONSB3403A1,78286 MFR REF SINGLE MATERIAL RESPONSE ROLLER
CONE CORNER RADIUS0.3020 INCHES MINIMUM AND 0.3220 INCHES MAXIMUM IN
CONE WIDTH2.2550 INCHES MINIMUM AND 2.2750 INCHES MAXIMUM IN
SPECIAL FEATURESSTABILIZED FOR OPERATION AT MINUS 65 DEG F TO PLUS 250 DEG F DEGF
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER4.0000 INCHES MINIMUM AND 4.0010 INCHES MAXIMUM 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
SB3403A1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is HH221449B2-254?
HH221449B2-254 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace HH221449B2-254?
There is 1 known substitute for HH221449B2-254: SB3403A1. Substitute compatibility should be verified for your specific system.
What is the NSN for HH221449B2-254?
HH221449B2-254 is cataloged in the U.S. Government catalog under NSN 3110-00-894-0433. This indicates validated use in U.S. government and defense supply chains.
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✓ 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.