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61801C1 — CUP,TAPERED ROLLER BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

61801C1: 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 COMP E52100 OVERALL, overall_width: 13.50 MILLIMETERS NOMINAL MM, outside_diameter: 63.00 MILLIMETERS NOMINAL MM, style_designator: NORMAL ANGLE, backface_corner_radius: 1.30 MILLIMETERS NOMINAL MM, standard_tolerance_designation: RBEC NO.1. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-007-1689, 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
61801C1
NSN: 3110-01-007-1689
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 89346 — NAVISTAR INTL CORP TRUCK BR OHIO PLANT (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OVERALL
overall_width13.50 MILLIMETERS NOMINAL MM
outside_diameter63.00 MILLIMETERS NOMINAL MM
style_designatorNORMAL ANGLE
backface_corner_radius1.30 MILLIMETERS NOMINAL MM
standard_tolerance_designationRBEC NO.1
NSN3110-01-007-1689
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 61801C1 · 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: 63.00 MILLIMETERS NOMINAL MM
•
BACKFACE CORNER RADIUS: 1.30 MILLIMETERS NOMINAL MM
•
STANDARD TOLERANCE DESIGNATION: RBEC NO.1
•
MATERIAL: STEEL COMP E52100 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 WIDTH13.50 MILLIMETERS NOMINAL MM
OUTSIDE DIAMETER63.00 MILLIMETERS NOMINAL MM
BACKFACE CORNER RADIUS1.30 MILLIMETERS NOMINAL MM
STANDARD TOLERANCE DESIGNATIONRBEC NO.1
MATERIALSTEEL COMP E52100 OVERALL
OTHER ITEMS IN FSC 3110 — Bearings, Antifriction, Unmounted
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
3110-00-001-1937 3110-00-001-1938 3110-00-001-4661 3110-00-001-4662 3110-00-001-4689 3110-00-001-4722
SUBSTITUTES & CROSS-REFERENCES 1
JL69310Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 61801C1?
61801C1 is a CUP,TAPERED ROLLER BEARING.
What parts can replace 61801C1?
There is 1 known substitute for 61801C1: JL69310. Substitute compatibility should be verified for your specific system.
What is the NSN for 61801C1?
61801C1 is cataloged in the U.S. Government catalog under NSN 3110-01-007-1689. 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.