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Technical Data Sheet
PartsTable / COMPONENT / T105A
T105A ✓ 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 length: 0.312 INCHES NOMINAL SQUARE END IN, material: STEEL OVERALL, thread_length: 1.130 INCHES MINIMUM IN, overall_length: 2.500 INCHES NOMINAL IN, shank_diameter: 0.318 INCHES MINIMUM IN, style_designator: STRAIGHT FLUTE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0328, 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
T105A
NSN: 3110-00-100-0328
FSC: 3110
CAGE: 09136 — BAY CITY SHOVELS, INC (USA)
SPECIFICATIONS
length0.312 INCHES NOMINAL SQUARE END IN
materialSTEEL OVERALL
thread_length1.130 INCHES MINIMUM IN
flute_quantity4
overall_length2.500 INCHES NOMINAL IN
shank_diameter0.318 INCHES MINIMUM IN
style_designatorSTRAIGHT FLUTE
thread_directionRIGHT-HAND
thread_structureREGULAR
width_across_flats0.191 INCHES NOMINAL IN
starting_chamfer_typePLUG
thread_forming_methodGROUND
NSN3110-00-100-0328
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: T105A · 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
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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
30098Interchangeable
interchangeable cross-reference
interchangeable
27042Interchangeable
interchangeable cross-reference
interchangeable
T80Interchangeable
interchangeable cross-reference
interchangeable
600138Interchangeable
interchangeable cross-reference
interchangeable
40312Interchangeable
interchangeable cross-reference
interchangeable
18-142Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is T105A?
T105A is a CUP,TAPERED ROLLER BEARING.
What parts can replace T105A?
There are 30 known substitutes for T105A: 30098, 27042, T80 and 27 more. Substitute compatibility should be verified for your specific system.
Is T105A still available?
T105A 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