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Technical Data Sheet
PartsTable / COMPONENT / A1311TFS
A1311TFS ✓ 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,SELF-ALIGNING is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SEPARATOR, bore_shape: STRAIGHT, bore_diameter: 25.0 MILLIMETERS NOMINAL MM, overall_width: 15.0 MILLIMETERS NOMINAL MM, surface_finish: GROUND, locating_feature: ONE DIRECTION. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-159-6062, 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
A1311TFS
NSN: 3110-00-159-6062
FSC: 3110
CAGE: 43334 — GENERAL MOTORS CORP DELCO MORAINE NDH DIV (USA)
SPECIFICATIONS
materialCOPPER ALLOY SEPARATOR
bore_shapeSTRAIGHT
bore_diameter25.0 MILLIMETERS NOMINAL MM
overall_width15.0 MILLIMETERS NOMINAL MM
surface_finishGROUND
locating_featureONE DIRECTION
outer_ring_width20.0 MILLIMETERS NOMINAL MM
special_featuresONE LIP OF INNER RING SEPARABLE
style_designatorSINGLE ROW, ONE-DIRECTION LOCATING, ONE LIP INNER RING, TWO LIP OUTER RING, SEPARABLE
internal_clearance0.0037 INCHES MINIMUM RADIAL AND 0.0054 INCHES MAXIMUM RADIAL IN
end_item_identificationMULTIPLE LAUNCH ROCKET SYSTEM (MLRS)
overall_outside_diameter52.0 MILLIMETERS NOMINAL MM
NSN3110-00-159-6062
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: A1311TFS · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
MK777-51Interchangeable
interchangeable cross-reference
interchangeable
M-2366Interchangeable
interchangeable cross-reference
interchangeable
471-223Interchangeable
interchangeable cross-reference
interchangeable
003816Interchangeable
interchangeable cross-reference
interchangeable
516759Interchangeable
interchangeable cross-reference
interchangeable
M3747-2546 ITEMS 2 THRU 16Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A1311TFS?
A1311TFS is a BEARING,ROLLER,SELF-ALIGNING.
What parts can replace A1311TFS?
There are 8 known substitutes for A1311TFS: MK777-51, M-2366, 471-223 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for A1311TFS?
A1311TFS is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-159-6062. 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