PartsTable
Technical Data Sheet
MS21439-110 ✓ 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 ROLLER, bore_diameter: 0.6250 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: UNGROUND, inner_ring_width: 1.5000 INCHES NOMINAL IN, outer_ring_width: 1.4400 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 3110-01-217-2327, 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
MS21439-110
NSN: 3110-01-217-2327
FSC: 3110
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialSTEEL ROLLER
bore_diameter0.6250 INCHES NOMINAL IN
seal_quantity2
alignment_typeRIGID
surface_finishUNGROUND
inner_ring_width1.5000 INCHES NOMINAL IN
outer_ring_width1.4400 INCHES NOMINAL IN
special_featuresOIL HOLES AND OIL GROOVE IN INNER RING,NO OIL HOLES OR OIL GROOVE IN OUTER RING
style_designatorAIRFRAME, HARDENED AND GROUND, NON-SEPARABLE
bearing_seal_typeCONTACT
surface_treatmentCADMIUM END PLATE
lubrication_materialGREASE
NSN3110-01-217-2327
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS21439-110 · 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
OUTER RING WIDTH: 1.4400 INCHES NOMINAL IN
BEARING SEAL TYPE: CONTACT
ALIGNMENT TYPE: RIGID
SEAL QUANTITY: 2
INNER RING WIDTH: 1.5000 INCHES NOMINAL IN
LUBRICATION MATERIAL: GREASE
SURFACE FINISH: UNGROUND
TECHNICAL CHARACTERISTICS (FLIS)
OUTER RING WIDTH1.4400 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
ALIGNMENT TYPERIGID
SEAL QUANTITY2
INNER RING WIDTH1.5000 INCHES NOMINAL IN
LUBRICATION MATERIALGREASE
SURFACE FINISHUNGROUND
SPECIAL FEATURESOIL HOLES AND OIL GROOVE IN INNER RING,NO OIL HOLES OR OIL GROOVE IN OUTER RING
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONQQ-C-320 FED SPEC SINGLE TREATMENT RESPONSE OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MS21439-124Interchangeable
interchangeable cross-reference
interchangeable
MS21439-106Interchangeable
interchangeable cross-reference
interchangeable
AS21439Interchangeable
interchangeable cross-reference
interchangeable
MS21439-114Interchangeable
interchangeable cross-reference
interchangeable
MS21439-108Interchangeable
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 MS21439-110?
MS21439-110 is a BEARING,ROLLER,NEEDLE.
What parts can replace MS21439-110?
There are 7 known substitutes for MS21439-110: MS21439-124, MS21439-106, AS21439 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21439-110?
MS21439-110 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-217-2327. This indicates validated use in U.S. government and defense supply chains.
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