PartsTable
Technical Data Sheet
PartsTable / COMPONENT / 38L
38L ✓ 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,BALL,ANNULAR is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_shape: STRAIGHT, bore_diameter: 8.00 MILLIMETERS NOMINAL MM, overall_width: 0.4060 INCHES NOMINAL IN, load_direction: RADIAL, overall_length: 7.031 INCHES MINIMUM AND 7.219 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 3110-00-156-3390, 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
38L
NSN: 3110-00-156-3390
FSC: 3110
CAGE: 21335 — TIMKEN CO DIV THE TIMKEN COMPANY (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_shapeSTRAIGHT
bore_diameter8.00 MILLIMETERS NOMINAL MM
overall_width0.4060 INCHES NOMINAL IN
seal_quantity1
load_directionRADIAL
overall_length7.031 INCHES MINIMUM AND 7.219 INCHES MAXIMUM IN
surface_finishGROUND
long_arm_length6.656 INCHES MINIMUM AND 6.844 INCHES MAXIMUM IN
inner_ring_width0.3860 INCHES NOMINAL IN
outer_ring_width0.3150 INCHES NOMINAL IN
short_arm_length1.281 INCHES MINIMUM AND 1.469 INCHES MAXIMUM IN
NSN3110-00-156-3390
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 38L · 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
•
SURFACE FINISH: GROUND
•
LOAD DIRECTION: RADIAL
•
INTERNAL FIT-UP DESIGNATION: STANDARD
•
SEAL QUANTITY: 1
•
BORE SHAPE: STRAIGHT
•
INNER RING WIDTH: 0.3860 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
SURFACE FINISHGROUND
LOAD DIRECTIONRADIAL
INTERNAL FIT-UP DESIGNATIONSTANDARD
SEAL QUANTITY1
BORE SHAPESTRAIGHT
INNER RING WIDTH0.3860 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONABEC NO.1
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-18709 MIL SPEC SINGLE MATERIAL RESPONSE
BEARING SEAL TYPECONTACT
OUTER RING WIDTH0.3150 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 27
324983Interchangeable
interchangeable cross-reference
interchangeable
8-038N300-9Interchangeable
interchangeable cross-reference
interchangeable
8-038N300-90Interchangeable
interchangeable cross-reference
interchangeable
8103Interchangeable
interchangeable cross-reference
interchangeable
BA-38Interchangeable
interchangeable cross-reference
interchangeable
8038Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 38L?
38L is a BEARING,BALL,ANNULAR.
What parts can replace 38L?
There are 27 known substitutes for 38L: 324983, 8-038N300-9, 8-038N300-90 and 24 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 38L?
38L is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-156-3390. 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