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681A — CONE AND ROLLERS,TAPERED ROLLER

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

681A: CONE AND ROLLERS,TAPERED ROLLER.

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include setting_type: HEAT, container_type: BAG, application_type: DRY, maximum_temp_for_which_designed: 2600.0 DEG FAHRENHEIT, part_name_assigned_by_controlling_agency: DRI-VIBE 681A A. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-022-2040, 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
681A
NSN: 3110-01-022-2040
NIINs: 010222040, 013986304, 016619250
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
setting_typeHEAT
container_typeBAG
application_typeDRY
maximum_temp_for_which_designed2600.0 DEG FAHRENHEIT
part_name_assigned_by_controlling_agencyDRI-VIBE 681A A
NSN3110-01-022-2040
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 681A · 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
•
RETAINER FABRICATION METHOD: STAMPED
•
STYLE DESIGNATOR: NORMAL ANGLE
•
CONE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
CONE WIDTH: 1.6250 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 4
•
BORE DIAMETER: 3.6250 INCHES NOMINAL IN
•
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
RETAINER FABRICATION METHODSTAMPED
STYLE DESIGNATORNORMAL ANGLE
CONE CORNER RADIUS0.2500 INCHES NOMINAL IN
CONE WIDTH1.6250 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 4
BORE DIAMETER3.6250 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
SUBSTITUTES & CROSS-REFERENCES 1
104-0203-042Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 681A?
681A is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace 681A?
There is 1 known substitute for 681A: 104-0203-042. Substitute compatibility should be verified for your specific system.
What is the NSN for 681A?
681A is cataloged in the U.S. Government catalog under NSN 3110-01-022-2040. 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.