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320897C1 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

320897C1: 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, overall_width: 0.6537 INCHES NOMINAL IN, outside_diameter: 2.8910 INCHES NOMINAL IN, special_features: DUTY CLASS LM SERIES, style_designator: NORMAL ANGLE, backface_corner_radius: 0.0300 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-128-2024, 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
320897C1
NSN: 3110-00-128-2024
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width0.6537 INCHES NOMINAL IN
outside_diameter2.8910 INCHES NOMINAL IN
special_featuresDUTY CLASS LM SERIES
style_designatorNORMAL ANGLE
backface_corner_radius0.0300 INCHES NOMINAL IN
standard_tolerance_designationAFBMA CLASS 2
NSN3110-00-128-2024
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 320897C1 · 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
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 2.8910 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0300 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
STYLE DESIGNATORNORMAL ANGLE
OVERALL WIDTH0.6537 INCHES NOMINAL IN
OUTSIDE DIAMETER2.8910 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0300 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS LM SERIES
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 5
C6TZ4222AReference document
Same NSN cross-reference
Reference document — Secondary reference
K-LM 501314/QSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
945341Reference document
Same NSN cross-reference
Reference document — Secondary reference
310447Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LM501314Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 320897C1?
320897C1 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 320897C1?
There are 5 known substitutes for 320897C1: C6TZ4222A, K-LM 501314/Q, 945341 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 320897C1?
320897C1 is cataloged in the U.S. Government catalog under NSN 3110-00-128-2024. 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.