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945739 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

945739: 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 end_item_identification: 8145-01-534-3597, part_name_assigned_by_controlling_agency: CLAMP. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-997-6187, 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
945739
NSN: 3110-00-997-6187
NIINs: 009976187, 015741891
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 34623 — AM GENERAL LLC (USA)
SPECIFICATIONS
end_item_identification8145-01-534-3597
part_name_assigned_by_controlling_agencyCLAMP
NSN3110-00-997-6187
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 945739 · 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: 2.5312 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0620 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 WIDTH0.6563 INCHES NOMINAL IN
OUTSIDE DIAMETER2.5312 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
SPECIAL FEATURESDUTY CLASS M SERIES
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 9
209MDWReference document
Same NSN cross-reference
Reference document — Secondary reference
550459Reference document
Same NSN cross-reference
Reference document — Secondary reference
M86610Reference document
Same NSN cross-reference
Reference document — Secondary reference
4923LReference document
Same NSN cross-reference
Reference document — Secondary reference
200233ZReference document
Same NSN cross-reference
Reference document — Secondary reference
156194Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 945739?
945739 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 945739?
There are 9 known substitutes for 945739: 209MDW, 550459, M86610 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 945739?
945739 is cataloged in the U.S. Government catalog under NSN 3110-00-997-6187. 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.