PartsTable
Technical Data Sheet
MS21439-116 ✓ 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: PLASTIC ACETAL SEAL, bore_diameter: 1.0000 INCHES NOMINAL IN, alignment_type: RIGID, surface_finish: GROUND, inner_ring_width: 2.2500 INCHES NOMINAL IN, outer_ring_width: 2.1900 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 3110-01-675-9506, 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
MS21439-116
NSN: 3110-01-675-9506
FSC: 3110
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC ACETAL SEAL
bore_diameter1.0000 INCHES NOMINAL IN
seal_quantity2
alignment_typeRIGID
surface_finishGROUND
inner_ring_width2.2500 INCHES NOMINAL IN
outer_ring_width2.1900 INCHES NOMINAL IN
style_designatorAIRFRAME, HARDENED AND GROUND, NON-SEPARABLE
bearing_seal_typeCONTACT
surface_treatmentCADMIUM END PLATE
lubrication_materialGREASE
end_item_identificationVARIOUS C-5 AIRCRAFT.
NSN3110-01-675-9506
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS21439-116 · 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
ALIGNMENT TYPE: RIGID
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
OUTER RING WIDTH: 2.1900 INCHES NOMINAL IN
MATERIAL: PLASTIC ACETAL SEAL
BEARING SEAL TYPE: CONTACT
SURFACE TREATMENT: CADMIUM END PLATE
TECHNICAL CHARACTERISTICS (FLIS)
PART NAME ASSIGNED BY CONTROLLING AGENCYBEARING,ROLLER,NEEDLE,DOUBLE ROW,HEAVY DUTY,TRACK ROLLER,SEALED,TYPE VI,INCH.
ALIGNMENT TYPERIGID
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
OUTER RING WIDTH2.1900 INCHES NOMINAL IN
MATERIALPLASTIC ACETAL SEAL
BEARING SEAL TYPECONTACT
END ITEM IDENTIFICATIONVARIOUS C-5 AIRCRAFT.
SURFACE TREATMENTCADMIUM END PLATE
MATERIALSTEEL COMP 304 OVERALL
INNER RING WIDTH2.2500 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MS21439-124Interchangeable
interchangeable cross-reference
interchangeable
MS21439-106Interchangeable
interchangeable cross-reference
interchangeable
AS21439Interchangeable
interchangeable cross-reference
interchangeable
MS21439-110Interchangeable
interchangeable cross-reference
interchangeable
MS21439-114Interchangeable
interchangeable cross-reference
interchangeable
MS21439-108Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS21439-116?
MS21439-116 is a BEARING,ROLLER,NEEDLE.
What parts can replace MS21439-116?
There are 7 known substitutes for MS21439-116: MS21439-124, MS21439-106, AS21439 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21439-116?
MS21439-116 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-675-9506. This indicates validated use in U.S. government and defense supply chains.
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