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90TDO393G4 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

90TDO393G4: BEARING,ROLLER,TAPERED.

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: 6.2500 INCHES NOMINAL IN, bore_diameter: 9.0000 INCHES NOMINAL IN, overall_width: 8.2500 INCHES NOMINAL IN, standout_width: 1.0000 INCHES NOMINAL IN, special_features: OIL HOLE AND GROOVE IN CUP,W/SPACER. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-151-9530, 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
90TDO393G4
NSN: 3110-00-151-9530
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width6.2500 INCHES NOMINAL IN
bore_diameter9.0000 INCHES NOMINAL IN
overall_width8.2500 INCHES NOMINAL IN
standout_width1.0000 INCHES NOMINAL IN
special_featuresOIL HOLE AND GROOVE IN CUP,W/SPACER
style_designatorSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES
cone_corner_radius0.2810 INCHES NOMINAL IN
backface_corner_radius0.0620 INCHES NOMINAL IN
overall_outside_diameter16.7500 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-151-9530
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 90TDO393G4 · 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: 6.2500 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, DOUBLE CUP, SINGLE CONES
•
OVERALL OUTSIDE DIAMETER: 16.7500 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0620 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.2810 INCHES NOMINAL IN
•
STANDOUT WIDTH: 1.0000 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
CUP WIDTH6.2500 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, DOUBLE CUP, SINGLE CONES
OVERALL WIDTH8.2500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER16.7500 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
CONE CORNER RADIUS0.2810 INCHES NOMINAL IN
STANDOUT WIDTH1.0000 INCHES NOMINAL IN
SPECIAL FEATURESOIL HOLE AND GROOVE IN CUP,W/SPACER
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER9.0000 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 6
EE700091-700168DReference document
Same NSN cross-reference
Reference document — Secondary reference
AE519PC9Reference document
Same NSN cross-reference
Reference document — Secondary reference
AE520PC3Reference document
Same NSN cross-reference
Reference document — Secondary reference
AE521PC3Reference document
Same NSN cross-reference
Reference document — Secondary reference
N1198BReference document
Same NSN cross-reference
Reference document — Secondary reference
DE11-9Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Terminal item — stock exhausted; no further procurementNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 90TDO393G4?
90TDO393G4 is a BEARING,ROLLER,TAPERED.
What parts can replace 90TDO393G4?
There are 6 known substitutes for 90TDO393G4: EE700091-700168D, AE519PC9, AE520PC3 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 90TDO393G4?
90TDO393G4 is cataloged in the U.S. Government catalog under NSN 3110-00-151-9530. 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.