PartsTable
Technical Data Sheet
AS21442 ✓ 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 INNER RING, crown_radius: 30.0000 INCHES NOMINAL IN, bore_diameter: 1.0000 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, inner_ring_width: 1.8125 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-144-1710, 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
AS21442
NSN: 3110-01-144-1710
FSC: 3110
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL INNER RING
crown_radius30.0000 INCHES NOMINAL IN
bore_diameter1.0000 INCHES NOMINAL IN
seal_quantity2
alignment_typeRIGID
surface_finishGROUND
inner_ring_width1.8125 INCHES NOMINAL IN
outer_ring_width1.7500 INCHES NOMINAL IN
style_designatorTRACK ROLLER, NON-SEPARABLE
bearing_seal_typeCONTACT
features_providedLUBRICATION GROOVE AND LUBRICATION HOLE
surface_treatmentCADMIUM AND CHROMATE OR OXIDE OR CADMIUM INNER RING
NSN3110-01-144-1710
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: AS21442 · 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
OVERALL OUTSIDE DIAMETER: 1.3745 INCHES MINIMUM AND 1.3745 INCHES MINIMUM AND 1.3770 INCHES MAXIMUM1.3770 INCHES MAXIMUM IN
INNER RING WIDTH: 0.8025 INCHES MINIMUM AND 0.8025 INCHES MINIMUM AND 0.8175 INCHES MAXIMUM0.8175 INCHES MAXIMUM IN
SEAL QUANTITY: 22
BEARING SEAL TYPE: CONTACTCONTACT
ALIGNMENT TYPE: RIGIDRIGID
OUTER RING WIDTH: 0.7450 INCHES MINIMUM AND 0.7450 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM0.7550 INCHES MAXIMUM IN
LUBRICATION MATERIAL: GREASEGREASE
SURFACE FINISH: GROUNDGROUND
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL OUTSIDE DIAMETER1.3745 INCHES MINIMUM AND 1.3745 INCHES MINIMUM AND 1.3770 INCHES MAXIMUM1.3770 INCHES MAXIMUM IN
INNER RING WIDTH0.8025 INCHES MINIMUM AND 0.8025 INCHES MINIMUM AND 0.8175 INCHES MAXIMUM0.8175 INCHES MAXIMUM IN
SEAL QUANTITY22
BEARING SEAL TYPECONTACTCONTACT
ALIGNMENT TYPERIGIDRIGID
OUTER RING WIDTH0.7450 INCHES MINIMUM AND 0.7450 INCHES MINIMUM AND 0.7550 INCHES MAXIMUM0.7550 INCHES MAXIMUM IN
LUBRICATION MATERIALGREASEGREASE
SURFACE FINISHGROUNDGROUND
SPECIAL FEATURESOIL GROOVE AND OIL HOLES IN INNER RING; OIL GROOVE IN OUTER RING OPTIONALOIL GROOVE AND OIL HOLES IN INNER RING; OIL GROOVE IN OUTER RING OPTIONAL
SURFACE TREATMENTOXIDE INNER RINGOXIDE INNER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 8
AS39901Interchangeable
interchangeable cross-reference
interchangeable
MS21442-161Interchangeable
interchangeable cross-reference
interchangeable
MS21442-321Interchangeable
interchangeable cross-reference
interchangeable
MS21442-481Interchangeable
interchangeable cross-reference
interchangeable
803-6397359 REV A PC. NO. 6Interchangeable
interchangeable cross-reference
interchangeable
AS21442Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is AS21442?
AS21442 is a BEARING,ROLLER,NEEDLE.
What parts can replace AS21442?
There are 8 known substitutes for AS21442: AS39901, MS21442-161, MS21442-321 and 5 more. Substitute compatibility should be verified for your specific system.
What is the NSN for AS21442?
AS21442 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-144-1710. This indicates validated use in U.S. government and defense supply chains.
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