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Technical Data Sheet
PartsTable / COMPONENT / 661347
661347 ✓ 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 general_characteristics_item_description: STEEL BAR FORGED PER MIL-S-5000 NORMALIZE AND TEMPER TO RH C33 MAX-FORGE PER MIL-F-7190 GRADE A. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0526, 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
661347
NSN: 3110-00-100-0526
FSC: 3110
CAGE: 58275 — SASCO INC CANADIAN DIV
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL BAR FORGED PER MIL-S-5000 NORMALIZE AND TEMPER TO RH C33 MAX-FORGE PER MIL-F-7190 GRADE A
NSN3110-00-100-0526
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 661347 · 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
•
BACKFACE CORNER RADIUS: 0.0469 INCHES NOMINAL IN
•
STYLE DESIGNATOR: NORMAL ANGLE
•
OUTSIDE DIAMETER: 2.8440 INCHES NOMINAL IN
•
MATERIAL: STEEL OVERALL
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
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 (FLIS)
OVERALL WIDTH0.6250 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0469 INCHES NOMINAL IN
STYLE DESIGNATORNORMAL ANGLE
OUTSIDE DIAMETER2.8440 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
5940001152678Interchangeable
interchangeable cross-reference
interchangeable
10386718Interchangeable
interchangeable cross-reference
interchangeable
12-Z-7001-2507Interchangeable
interchangeable cross-reference
interchangeable
16284Interchangeable
interchangeable cross-reference
interchangeable
ASTM-B687Interchangeable
interchangeable cross-reference
interchangeable
9325C16-3099Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 661347?
661347 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 661347?
There are 23 known substitutes for 661347: 5940001152678, 10386718, 12-Z-7001-2507 and 20 more. Substitute compatibility should be verified for your specific system.
Is 661347 still available?
661347 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