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Technical Data Sheet
PartsTable / COMPONENT / M305A14276
M305A14276 ✓ 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 material: STEEL CORROSION RESISTING OVERALL, cup_width: 0.6250 INCHES NOMINAL IN, body_style: STRAIGHT SHAPE, cone_width: 0.7710 INCHES NOMINAL IN, seat_angle: 60.0 DEGREES NOMINAL, body_length: 1.000 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0516, 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
M305A14276
NSN: 3110-00-100-0516
FSC: 3110
CAGE: 12935 — MARS INDUSTRIES INC (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING OVERALL
cup_width0.6250 INCHES NOMINAL IN
body_styleSTRAIGHT SHAPE
cone_width0.7710 INCHES NOMINAL IN
seat_angle60.0 DEGREES NOMINAL
body_length1.000 INCHES NOMINAL IN
tip_diameter0.062 INCHES NOMINAL IN
body_diameter0.594 INCHES MAXIMUM IN
bore_diameter1.3750 INCHES NOMINAL IN
hole_diameter0.250 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
overall_width0.302 INCHES MINIMUM AND 0.322 INCHES MAXIMUM IN
terminal_typeTURRET SINGLE MATING END SINGLE CONTACT GROUPING
NSN3110-00-100-0516
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: M305A14276 · 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 27
14276Interchangeable
interchangeable cross-reference
interchangeable
1247694Interchangeable
interchangeable cross-reference
interchangeable
12476Interchangeable
interchangeable cross-reference
interchangeable
4850PC6Interchangeable
interchangeable cross-reference
interchangeable
3860Interchangeable
interchangeable cross-reference
interchangeable
102301Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is M305A14276?
M305A14276 is a CUP,TAPERED ROLLER BEARING.
What parts can replace M305A14276?
There are 27 known substitutes for M305A14276: 14276, 1247694, 12476 and 24 more. Substitute compatibility should be verified for your specific system.
Is M305A14276 still available?
M305A14276 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