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Technical Data Sheet
PartsTable / COMPONENT / 378389
378389 ✓ 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 IBM 1GB MAIN STORAGE 800/810 is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_length: 1.3550 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN, style_designator: NEEDLE ROLLER, BALL ENDS, rolling_element_diameter: 0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-065-4889, 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
378389
NSN: 3110-00-065-4889
FSC: 3110
CAGE: 11757 — PARKER HANNIFIN CORPORATION DIV CHELSEA PRODUCTS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length1.3550 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN
style_designatorNEEDLE ROLLER, BALL ENDS
rolling_element_diameter0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
NSN3110-00-065-4889
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 378389 · 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
•
1GB Capacity
•
ROLLING ELEMENT DIAMETER: 0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NEEDLE ROLLER, BALL ENDS
•
MATERIAL: STEEL OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH1.3550 INCHES MINIMUM AND 1.3750 INCHES MAXIMUM IN
ROLLING ELEMENT DIAMETER0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
STYLE DESIGNATORNEEDLE ROLLER, BALL ENDS
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 18
BAC1505-13900Interchangeable
interchangeable cross-reference
interchangeable
AMS-QQA200-3Interchangeable
interchangeable cross-reference
interchangeable
3094Interchangeable
IBM 1GB Main Storage 800/810
interchangeable
WW-P-491Interchangeable
interchangeable cross-reference
interchangeable
306Interchangeable
interchangeable cross-reference
interchangeable
3046041R1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 378389?
378389 is a IBM 1GB MAIN STORAGE 800/810.
What parts can replace 378389?
There are 18 known substitutes for 378389: BAC1505-13900, AMS-QQA200-3, 3094 and 15 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 378389?
378389 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-065-4889. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026