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Technical Data Sheet
PartsTable / COMPONENT / HM212047
HM212047 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 1.5100 INCHES NOMINAL IN, bore_diameter: 2.5000 INCHES NOMINAL IN, special_features: DUTY CLASS HM SERIES, style_designator: NORMAL ANGLE, cone_corner_radius: 0.2810 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-293-8566, 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
HM212047
NSN: 3110-00-293-8566
FSC: 3110
CAGE: 60036 — CONVERSATIONAL VOICE TERMINAL CORP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.5100 INCHES NOMINAL IN
bore_diameter2.5000 INCHES NOMINAL IN
special_featuresDUTY CLASS HM SERIES
style_designatorNORMAL ANGLE
cone_corner_radius0.2810 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-293-8566
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: HM212047 · 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
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 2.5000 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.2810 INCHES NOMINAL IN
•
CONE WIDTH: 1.5100 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 (FLIS)
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER2.5000 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.2810 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS HM SERIES
CONE WIDTH1.5100 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
620735Interchangeable
interchangeable cross-reference
interchangeable
20735Interchangeable
interchangeable cross-reference
interchangeable
054-0113-044Interchangeable
Same NIIN cross-reference
interchangeable
1X4665Interchangeable
Same NIIN cross-reference
interchangeable
879272R91Interchangeable
Same NIIN cross-reference
interchangeable
6H3566Interchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is HM212047?
HM212047 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace HM212047?
There are 9 known substitutes for HM212047: 620735, 20735, 054-0113-044 and 6 more. Substitute compatibility should be verified for your specific system.
Is HM212047 still available?
HM212047 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