PartsTable
Technical Data Sheet

42381/42584 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

42381/42584: BEARING,ROLLER,TAPERED.

The BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include material: STEEL OVERALL, cup_width: 0.8438 INCHES NOMINAL IN, cone_width: 1.1406 INCHES NOMINAL IN, bore_diameter: 3.8125 INCHES NOMINAL IN, overall_width: 2.2500 INCHES NOMINAL IN, standout_width: 1.4062 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-281-9221, 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
42381/42584
NSN: 3110-01-281-9221
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 60038 — THE TIMKEN CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width0.8438 INCHES NOMINAL IN
cone_width1.1406 INCHES NOMINAL IN
bore_diameter3.8125 INCHES NOMINAL IN
overall_width2.2500 INCHES NOMINAL IN
standout_width1.4062 INCHES NOMINAL IN
style_designatorSTRAIGHT BORE, NORMAL ANGLE
cone_corner_radius0.1400 INCHES NOMINAL IN
backface_corner_radius0.1200 INCHES NOMINAL IN
overall_outside_diameter5.8437 INCHES NOMINAL IN
NSN3110-01-281-9221
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 42381/42584 · 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
•
CUP WIDTH: 0.8438 INCHES NOMINAL IN
•
STYLE DESIGNATOR: STRAIGHT BORE, NORMAL ANGLE
•
OVERALL OUTSIDE DIAMETER: 5.8437 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.1200 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1400 INCHES NOMINAL IN
•
STANDOUT WIDTH: 1.4062 INCHES NOMINAL IN
•
CONE WIDTH: 1.1406 INCHES NOMINAL IN
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
CUP WIDTH0.8438 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
OVERALL WIDTH2.2500 INCHES NOMINAL IN
OVERALL OUTSIDE DIAMETER5.8437 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.1200 INCHES NOMINAL IN
CONE CORNER RADIUS0.1400 INCHES NOMINAL IN
STANDOUT WIDTH1.4062 INCHES NOMINAL IN
CONE WIDTH1.1406 INCHES NOMINAL IN
BORE DIAMETER3.8125 INCHES NOMINAL IN
MATERIALSTEEL 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

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
Ready to buy 42381/42584?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is 42381/42584?
42381/42584 is a BEARING,ROLLER,TAPERED.
What is the NSN for 42381/42584?
42381/42584 is cataloged in the U.S. Government catalog under NSN 3110-01-281-9221. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 42381/42584

✓ 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.