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Technical Data Sheet
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1304L — Technical Data Sheet

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— · 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 OUTER RING, bore_shape: STRAIGHT, bore_diameter: 20.00 MILLIMETERS NOMINAL MM, overall_width: 15.00 MILLIMETERS NOMINAL MM, load_direction: RADIAL, surface_finish: GROUND. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-144-8803, 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
1304L
NSN: 3110-00-144-8803
FSC: 3110
CAGE: 21760 — SCHATZ BEARING CORPORATION DBA SCHATZ BEARING CORP (USA)
SPECIFICATIONS
materialSTEEL OUTER RING
bore_shapeSTRAIGHT
bore_diameter20.00 MILLIMETERS NOMINAL MM
overall_width15.00 MILLIMETERS NOMINAL MM
load_directionRADIAL
surface_finishGROUND
style_designatorNON-LOADING GROOVE, NON-SEPARABLE
overall_outside_diameter52.00 MILLIMETERS NOMINAL MM
internal_fit-up_designationLOOSE
standard_tolerance_designationABEC NO.1
NSN3110-00-144-8803
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1304L · 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
•
STANDARD TOLERANCE DESIGNATION: ABEC NO.1
•
SURFACE FINISH: GROUND
•
INTERNAL FIT-UP DESIGNATION: LOOSE
•
MATERIAL: STEEL OUTER RING
•
STYLE DESIGNATOR: NON-LOADING GROOVE, NON-SEPARABLE
TECHNICAL CHARACTERISTICS
STANDARD TOLERANCE DESIGNATIONABEC NO.1
SURFACE FINISHGROUND
INTERNAL FIT-UP DESIGNATIONLOOSE
MATERIALSTEEL OUTER RING
MATERIALSTEEL INNER RING
MATERIALSTEEL BALL
STYLE DESIGNATORNON-LOADING GROOVE, NON-SEPARABLE
OVERALL WIDTH15.00 MILLIMETERS NOMINAL MM
BORE DIAMETER20.00 MILLIMETERS NOMINAL MM
OVERALL OUTSIDE DIAMETER52.00 MILLIMETERS NOMINAL MM
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
FF-B-171/05J04A3EInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
416821-3FEInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
6304C3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
41304PInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
MT304PInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
P9618541-5InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1304L?
1304L is a BEARING,BALL,ANNULAR.
What parts can replace 1304L?
There are 10 known substitutes for 1304L: FF-B-171/05J04A3E, 416821-3FE, 6304C3 and 7 more. Substitute compatibility should be verified for your specific system.
Is 1304L still available?
1304L is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: September 2026