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8438301 — BEARING,BALL,LINEAR MOTION

✓ Government record, cited
— · TAPERED BEARING
PRODUCT OVERVIEW

8438301: BEARING,BALL,LINEAR MOTION.

The BEARING,BALL,LINEAR MOTION is a the manufacturer industrial component. Key specifications include material: STEEL SLEEVE, overall_length: 0.4850 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN, outside_diameter: 0.3121 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN, working_bore_diameter: 0.1247 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN. This part is cataloged in the U.S.

Government catalog under NSN 3110-00-799-0612, 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
8438301
NSN: 3110-00-799-0612
FSC: 3110 — Bearings, Antifriction, Unmounted
CAGE: 19204 — ARMY, UNITED STATES DEPARTMENT OF THE DBA ROCK ISLAND ARSENAL JMTC (USA)
SPECIFICATIONS
materialSTEEL SLEEVE
overall_length0.4850 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
outside_diameter0.3121 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
working_bore_diameter0.1247 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
NSN3110-00-799-0612
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 8438301 · 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
•
WORKING BORE DIAMETER: 0.1247 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
•
OUTSIDE DIAMETER: 0.3121 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
•
MATERIAL: COPPER ALLOY RETAINER
TECHNICAL CHARACTERISTICS
WORKING BORE DIAMETER0.1247 INCHES MINIMUM AND 0.1250 INCHES MAXIMUM IN
OVERALL LENGTH0.4850 INCHES MINIMUM AND 0.5000 INCHES MAXIMUM IN
OUTSIDE DIAMETER0.3121 INCHES MINIMUM AND 0.3125 INCHES MAXIMUM IN
MATERIALCOPPER ALLOY RETAINER
MATERIALSTEEL BALL
MATERIALSTEEL SLEEVE
SUBSTITUTES & CROSS-REFERENCES 4
3110007990612Reference document
Same NSN cross-reference
Reference document — Informative reference only
SM-C-805990-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
INST258SSSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
534500-1Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8438301?
8438301 is a BEARING,BALL,LINEAR MOTION.
What parts can replace 8438301?
There are 4 known substitutes for 8438301: 3110007990612, SM-C-805990-1, INST258SS and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8438301?
8438301 is cataloged in the U.S. Government catalog under NSN 3110-00-799-0612. 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.