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64AX170 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

64AX170: CUP,TAPERED ROLLER BEARING.

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, flange_width: 0.2500 INCHES NOMINAL IN, overall_width: 1.1875 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, FLANGED, backface_corner_radius: 0.1250 INCHES NOMINAL IN, flange_outside_diameter: 5.1250 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-142-4397, 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
64AX170
NSN: 3110-00-142-4397
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 76084 — MACK TRUCKS INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flange_width0.2500 INCHES NOMINAL IN
overall_width1.1875 INCHES NOMINAL IN
style_designatorNORMAL ANGLE, FLANGED
backface_corner_radius0.1250 INCHES NOMINAL IN
flange_outside_diameter5.1250 INCHES NOMINAL IN
outer_ring_outside_diameter4.8750 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-142-4397
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 64AX170 · 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
•
FLANGE OUTSIDE DIAMETER: 5.1250 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE, FLANGED
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
FLANGE WIDTH: 0.2500 INCHES NOMINAL IN
•
OUTER RING OUTSIDE DIAMETER: 4.8750 INCHES NOMINAL IN
•
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
FLANGE OUTSIDE DIAMETER5.1250 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE, FLANGED
OVERALL WIDTH1.1875 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
FLANGE WIDTH0.2500 INCHES NOMINAL IN
OUTER RING OUTSIDE DIAMETER4.8750 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 2
552BSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
K552BSame 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 64AX170?
64AX170 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 64AX170?
There are 2 known substitutes for 64AX170: 552B, K552B. Substitute compatibility should be verified for your specific system.
What is the NSN for 64AX170?
64AX170 is cataloged in the U.S. Government catalog under NSN 3110-00-142-4397. 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.