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Technical Data Sheet
PartsTable / COMPONENT / 1SE5821
1SE5821 ✓ 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,ROLLER,NEEDLE is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, bore_diameter: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN, overall_width: 0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN, alignment_type: RIGID, surface_finish: GROUND, style_designator: SEPARABLE INNER RACE, WITH ROLLER RETAINER, HARDENED AND GROUND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-4612, 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
1SE5821
NSN: 3110-00-227-4612
FSC: 3110
CAGE: 45014 — ORANGE ROLLER BEARING CO INC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
overall_width0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
alignment_typeRIGID
surface_finishGROUND
special_featuresOD OF OUTER RACE CHROME PLATED ALSO FACES OF BLACK OXIDE ALSO ENDS OF INNER RACE CADMIUM PLATED ALSO W/O RETAINMENT PLATES
style_designatorSEPARABLE INNER RACE, WITH ROLLER RETAINER, HARDENED AND GROUND
lubrication_materialGREASE
overall_outside_diameter0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
retainer_fabrication_methodPRESSED
NSN3110-00-227-4612
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: 1SE5821 · 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
•
ALIGNMENT TYPE: RIGID
•
SURFACE FINISH: GROUND
•
RETAINER FABRICATION METHOD: PRESSED
•
LUBRICATION MATERIAL: GREASE
•
BORE DIAMETER: 0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: SEPARABLE INNER RACE, WITH ROLLER RETAINER, HARDENED AND GROUND
TECHNICAL CHARACTERISTICS (FLIS)
ALIGNMENT TYPERIGID
SPECIAL FEATURESOD OF OUTER RACE CHROME PLATED ALSO FACES OF BLACK OXIDE ALSO ENDS OF INNER RACE CADMIUM PLATED ALSO W/O RETAINMENT PLATES
SURFACE FINISHGROUND
RETAINER FABRICATION METHODPRESSED
LUBRICATION MATERIALGREASE
BORE DIAMETER0.2495 INCHES MINIMUM AND 0.2500 INCHES MAXIMUM IN
STYLE DESIGNATORSEPARABLE INNER RACE, WITH ROLLER RETAINER, HARDENED AND GROUND
OVERALL WIDTH0.3700 INCHES MINIMUM AND 0.3750 INCHES MAXIMUM IN
MATERIALSTEEL OVERALL
OVERALL OUTSIDE DIAMETER0.7490 INCHES MINIMUM AND 0.7500 INCHES MAXIMUM IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 17
503-S 34Interchangeable
interchangeable cross-reference
interchangeable
12234Interchangeable
interchangeable cross-reference
interchangeable
B94.11MInterchangeable
interchangeable cross-reference
interchangeable
SP411-2Interchangeable
interchangeable cross-reference
interchangeable
11404Interchangeable
interchangeable cross-reference
interchangeable
6240PL1338062Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1SE5821?
1SE5821 is a BEARING,ROLLER,NEEDLE.
What parts can replace 1SE5821?
There are 17 known substitutes for 1SE5821: 503-S 34, 12234, B94.11M and 14 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1SE5821?
1SE5821 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-227-4612. 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