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Technical Data Sheet
PartsTable / COMPONENT / MS21442-321
MS21442-321 ✓ 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 alignment_type: RIGID, surface_finish: GROUND, style_designator: TRACK ROLLER, NON-SEPARABLE, bearing_seal_type: CONTACT, features_provided: LUBRICATION GROOVE AND LUBRICATION HOLE, standard_tolerance_designation: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-444-9681, 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
MS21442-321
NSN: 3110-01-444-9681
FSC: 3110
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
seal_quantity2
alignment_typeRIGID
surface_finishGROUND
style_designatorTRACK ROLLER, NON-SEPARABLE
bearing_seal_typeCONTACT
features_providedLUBRICATION GROOVE AND LUBRICATION HOLE
standard_tolerance_designationAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
NSN3110-01-444-9681
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS21442-321 · 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: TRACK ROLLER, NON-SEPARABLE
•
SURFACE FINISH: GROUND
•
SEAL QUANTITY: 2
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
•
ALIGNMENT TYPE: RIGID
•
BEARING SEAL TYPE: CONTACT
•
FEATURES PROVIDED: LUBRICATION GROOVE AND LUBRICATION HOLE
TECHNICAL CHARACTERISTICS (FLIS)
STYLE DESIGNATORTRACK ROLLER, NON-SEPARABLE
SURFACE FINISHGROUND
SEAL QUANTITY2
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR INDUSTRIAL NEEDLE BEARINGS
ALIGNMENT TYPERIGID
BEARING SEAL TYPECONTACT
FEATURES PROVIDEDLUBRICATION GROOVE AND LUBRICATION HOLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
4NBC612ZPANG25Interchangeable
interchangeable cross-reference
interchangeable
505-4Interchangeable
IBM Flex System FC5054 4-Port FC-16GB Adapter
interchangeable
24NBC2036YZP2CInterchangeable
interchangeable cross-reference
interchangeable
24NBC2036YZPANG25Interchangeable
interchangeable cross-reference
interchangeable
64A98B76-1Interchangeable
interchangeable cross-reference
interchangeable
AS39901Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21442-321?
MS21442-321 is a BEARING,ROLLER,NEEDLE.
What parts can replace MS21442-321?
There are 22 known substitutes for MS21442-321: 4NBC612ZPANG25, 505-4, 24NBC2036YZP2C and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21442-321?
MS21442-321 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-444-9681. 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