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Technical Data Sheet
PartsTable / COMPONENT / A-A-59651
A-A-59651 ✓ 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 BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 1.0000 INCHES NOMINAL IN, cone_width: 1.5625 INCHES NOMINAL IN, bore_diameter: 2.7500 INCHES NOMINAL IN, overall_width: 1.6250 INCHES NOMINAL IN, standout_width: 0.6250 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-070-0178, 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
A-A-59651
NSN: 3110-00-070-0178
FSC: 3110
CAGE: 58536 — FEDERAL COMMERCIAL ITEM DESCRIPTION PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width1.0000 INCHES NOMINAL IN
cone_width1.5625 INCHES NOMINAL IN
bore_diameter2.7500 INCHES NOMINAL IN
overall_width1.6250 INCHES NOMINAL IN
standout_width0.6250 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, STEEP ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1250 INCHES NOMINAL IN
overall_outside_diameter5.7500 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-070-0178
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A-A-59651 · 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
•
CUP WIDTH: 1.5625 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
CONE WIDTH: 2.0625 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1250 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.6250 INCHES NOMINAL IN
•
BORE DIAMETER: 4.3750 INCHES NOMINAL IN
•
OVERALL OUTSIDE DIAMETER: 8.4375 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)
CUP WIDTH1.5625 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
CONE WIDTH2.0625 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1250 INCHES NOMINAL IN
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
STANDOUT WIDTH0.6250 INCHES NOMINAL IN
BORE DIAMETER4.3750 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER8.4375 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, STEEP ANGLE
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 20
64AX37Interchangeable
interchangeable cross-reference
interchangeable
53387Interchangeable
interchangeable cross-reference
interchangeable
310470Interchangeable
interchangeable cross-reference
interchangeable
92859220Interchangeable
interchangeable cross-reference
interchangeable
6352229 IT 22Interchangeable
interchangeable cross-reference
interchangeable
9380-9321Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A-A-59651?
A-A-59651 is a BEARING,ROLLER,TAPERED.
What parts can replace A-A-59651?
There are 20 known substitutes for A-A-59651: 64AX37, 53387, 310470 and 17 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A-A-59651?
A-A-59651 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-070-0178. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026