PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 377-374
377-374 ✓ 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 BEARING,ROLLER,TAPERED is a the manufacturer tape media or drive component used in enterprise backup, archival, and disaster recovery environments. Key specifications include diameter: 0.250 INCHES NOMINAL IN, material: STEEL, construction: SEAMLESS, wall_thickness: 0.035 INCHES NOMINAL IN, first_end_style: PLAIN, second_end_style: OUTSIDE BEADED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-2089, 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
377-374
NSN: 3110-00-227-2089
FSC: 3110
CAGE: 05624 — GE AVIATION SYSTEMS LLC DBA GE AVIATION SYSTEMS LLC (USA)
SPECIFICATIONS
diameter0.250 INCHES NOMINAL IN
materialSTEEL
constructionSEAMLESS
wall_thickness0.035 INCHES NOMINAL IN
first_end_stylePLAIN
second_end_styleOUTSIDE BEADED
second_end_bead_width0.157 INCHES NOMINAL IN
end_item_identificationHYSTER FORK LIFT MODEL H155 XL
cross-sectional_shape_stylePLAIN ROUND
second_end_outside_diameter0.250 INCHES NOMINAL IN
second_end_bead_outside_diameter0.312 INCHES NOMINAL IN
second_end_relationship_with_first_endNOT IDENTICAL
NSN3110-00-227-2089
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 377-374 · 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
•
CONE WIDTH: 0.8750 INCHES NOMINAL IN
•
STANDOUT WIDTH: 0.2187 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.0930 INCHES NOMINAL IN
•
CUP WIDTH: 0.5938 INCHES NOMINAL IN
•
BACKFACE CORNER RADIUS: 0.0460 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
BORE DIAMETER: 2.0625 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 (FLIS)
CONE WIDTH0.8750 INCHES NOMINAL IN
STANDOUT WIDTH0.2187 INCHES NOMINAL IN
CONE CORNER RADIUS0.0930 INCHES NOMINAL IN
OVERALL WIDTH0.8125 INCHES NOMINAL IN
CUP WIDTH0.5938 INCHES NOMINAL IN
BACKFACE CORNER RADIUS0.0460 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
BORE DIAMETER2.0625 INCHES NOMINAL IN
STYLE DESIGNATORSTRAIGHT BORE, NORMAL ANGLE
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
372983Interchangeable
interchangeable cross-reference
interchangeable
1-589-1Interchangeable
interchangeable cross-reference
interchangeable
SS1794Interchangeable
interchangeable cross-reference
interchangeable
20806Interchangeable
interchangeable cross-reference
interchangeable
42922Interchangeable
interchangeable cross-reference
interchangeable
H2001Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 377-374?
377-374 is a BEARING,ROLLER,TAPERED.
What parts can replace 377-374?
There are 13 known substitutes for 377-374: 372983, 1-589-1, SS1794 and 10 more. Substitute compatibility should be verified for your specific system.
Is 377-374 still available?
377-374 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