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PartsTable / COMPONENT / CL21A7591-104
CL21A7591-104 ✓ 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: 0.3750 INCHES NOMINAL IN, overall_width: 0.6250 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, special_features: EXTRA CAPACITY OUTER RACE. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-1037, 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
CL21A7591-104
NSN: 3110-00-198-1037
FSC: 3110
CAGE: 15280 — NORTHROP GRUMMAN SYSTEMS CORPORATION DIV ES DEFENSIVE SYSTEMS DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
bore_diameter0.3750 INCHES NOMINAL IN
overall_width0.6250 INCHES NOMINAL IN
alignment_typeRIGID
surface_finishGROUND
special_featuresEXTRA CAPACITY OUTER RACE
style_designatorNON-SEPARABLE, CLOSED END, DRAWN SHELL
lubrication_materialGREASE
overall_outside_diameter0.5620 INCHES NOMINAL IN
retainer_fabrication_methodPRESSED
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-00-198-1037
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: CL21A7591-104 · 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
•
STYLE DESIGNATOR: NON-SEPARABLE, CLOSED END, DRAWN SHELL
•
LUBRICATION MATERIAL: GREASE
•
RETAINER FABRICATION METHOD: PRESSED
•
ALIGNMENT TYPE: RIGID
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORNON-SEPARABLE, CLOSED END, DRAWN SHELL
OVERALL WIDTH0.6250 INCHES NOMINAL IN
LUBRICATION MATERIALGREASE
RETAINER FABRICATION METHODPRESSED
SPECIAL FEATURESEXTRA CAPACITY OUTER RACE
ALIGNMENT TYPERIGID
LUBRICATION MATERIALGREASE
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
SURFACE FINISHGROUND
BORE DIAMETER0.3750 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 3
16300Interchangeable
interchangeable cross-reference
interchangeable
103303Interchangeable
interchangeable cross-reference
interchangeable
L3502Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CL21A7591-104?
CL21A7591-104 is a BEARING,ROLLER,NEEDLE.
What parts can replace CL21A7591-104?
There are 3 known substitutes for CL21A7591-104: 16300, 103303, L3502. Substitute compatibility should be verified for your specific system.
What is the NSN for CL21A7591-104?
CL21A7591-104 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-198-1037. 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