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921446 — BEARING,ROLLER,TAPERED

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

921446: 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: 5.9990 INCHES MINIMUM AND 6.0010 INCHES MAXIMUM IN, bore_diameter: 5.7500 INCHES MINIMUM AND 5.7510 INCHES MAXIMUM IN, overall_width: 8.4990 INCHES MINIMUM AND 8.5010 INCHES MAXIMUM IN, standout_width: 1.2500 INCHES NOMINAL IN, cone_corner_radius: 0.2500 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-459-0882, 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
921446
NSN: 3110-00-459-0882
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 21444 — REXNORD INDUSTRIES LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
cup_width5.9990 INCHES MINIMUM AND 6.0010 INCHES MAXIMUM IN
bore_diameter5.7500 INCHES MINIMUM AND 5.7510 INCHES MAXIMUM IN
overall_width8.4990 INCHES MINIMUM AND 8.5010 INCHES MAXIMUM IN
standout_width1.2500 INCHES NOMINAL IN
cone_corner_radius0.2500 INCHES NOMINAL IN
backface_corner_radius0.0620 INCHES NOMINAL IN
overall_outside_diameter13.4900 INCHES MINIMUM AND 13.5000 INCHES MAXIMUM IN
reference_number_differentiating_characteristicsAS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER
NSN3110-00-459-0882
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 921446 · 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: 5.9990 INCHES MINIMUM AND 6.0010 INCHES MAXIMUM IN
•
OVERALL OUTSIDE DIAMETER: 13.4900 INCHES MINIMUM AND 13.5000 INCHES MAXIMUM IN
•
BACKFACE CORNER RADIUS: 0.0620 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.2500 INCHES NOMINAL IN
•
STANDOUT WIDTH: 1.2500 INCHES NOMINAL IN
•
BORE DIAMETER: 5.7500 INCHES MINIMUM AND 5.7510 INCHES MAXIMUM 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
CUP WIDTH5.9990 INCHES MINIMUM AND 6.0010 INCHES MAXIMUM IN
OVERALL WIDTH8.4990 INCHES MINIMUM AND 8.5010 INCHES MAXIMUM IN
OVERALL OUTSIDE DIAMETER13.4900 INCHES MINIMUM AND 13.5000 INCHES MAXIMUM IN
BACKFACE CORNER RADIUS0.0620 INCHES NOMINAL IN
CONE CORNER RADIUS0.2500 INCHES NOMINAL IN
STANDOUT WIDTH1.2500 INCHES NOMINAL IN
BORE DIAMETER5.7500 INCHES MINIMUM AND 5.7510 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
REFERENCE NUMBER DIFFERENTIATING CHARACTERISTICSAS DIFFERENTIATED BY EXTRA LONG REFERENCE NUMBER
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 3
C27467-012EPReference document
Same NSN cross-reference
Reference document — Secondary reference
5197355Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
HH932145-HH932110-HH932145XC-HH-Reference document
Same NSN cross-reference
Reference document — Design control — primary 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 921446?
921446 is a BEARING,ROLLER,TAPERED.
What parts can replace 921446?
There are 3 known substitutes for 921446: C27467-012EP, 5197355, HH932145-HH932110-HH932145XC-HH-. Substitute compatibility should be verified for your specific system.
What is the NSN for 921446?
921446 is cataloged in the U.S. Government catalog under NSN 3110-00-459-0882. 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.