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Technical Data Sheet
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378408 — ROLLER,BEARING

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

378408: ROLLER,BEARING.

The ROLLER,BEARING is a the manufacturer industrial component. Key specifications include overall_length: 1.1050 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN, style_designator: NEEDLE ROLLER, SPHERICAL ENDS, rolling_element_diameter: 0.1821 INCHES MINIMUM AND 0.1823 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-01-015-6906, 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
378408
NSN: 3110-01-015-6906
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 11757 — PARKER HANNIFIN CORPORATION DIV CHELSEA PRODUCTS DIVISION (USA)
SPECIFICATIONS
overall_length1.1050 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
style_designatorNEEDLE ROLLER, SPHERICAL ENDS
rolling_element_diameter0.1821 INCHES MINIMUM AND 0.1823 INCHES MAXIMUM IN
NSN3110-01-015-6906
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 378408 · 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
•
ROLLING ELEMENT DIAMETER: 0.1821 INCHES MINIMUM AND 0.1823 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: NEEDLE ROLLER, SPHERICAL ENDS
TECHNICAL CHARACTERISTICS
ROLLING ELEMENT DIAMETER0.1821 INCHES MINIMUM AND 0.1823 INCHES MAXIMUM IN
STYLE DESIGNATORNEEDLE ROLLER, SPHERICAL ENDS
OVERALL LENGTH1.1050 INCHES MINIMUM AND 1.1250 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES 1
328297-6XReference 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 378408?
378408 is a ROLLER,BEARING.
What parts can replace 378408?
There is 1 known substitute for 378408: 328297-6X. Substitute compatibility should be verified for your specific system.
What is the NSN for 378408?
378408 is cataloged in the U.S. Government catalog under NSN 3110-01-015-6906. 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.