PartsTable
Technical Data Sheet
MS21439-114 ✓ 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 bore_diameter: 0.8750 INCHES NOMINAL IN, alignment_type: RIGID, inner_ring_width: 2.0000 INCHES NOMINAL IN, outer_ring_width: 1.9400 INCHES NOMINAL IN, bearing_seal_type: CONTACT, surface_treatment: CADMIUM OR OXIDE INNER RING. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-217-2843, 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
MS21439-114
NSN: 3110-01-217-2843
FSC: 3110
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL COMP 4615 OR STEEL COMP 4617 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E50100 OR STEEL COMP E52100 OR STEEL COMP E51100 OUTER RING
bore_diameter0.8750 INCHES NOMINAL IN
seal_quantity2
alignment_typeRIGID
inner_ring_width2.0000 INCHES NOMINAL IN
outer_ring_width1.9400 INCHES NOMINAL IN
bearing_seal_typeCONTACT
surface_treatmentCADMIUM OR OXIDE INNER RING
lubrication_materialGREASE
standard_tolerance_designationAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
NSN3110-01-217-2843
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS21439-114 · 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
BORE DIAMETER: 0.8750 INCHES NOMINAL IN
ALIGNMENT TYPE: RIGID
OUTER RING WIDTH: 1.9400 INCHES NOMINAL IN
SEAL QUANTITY: 2
BEARING SEAL TYPE: CONTACT
INNER RING WIDTH: 2.0000 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER0.8750 INCHES NOMINAL IN
ALIGNMENT TYPERIGID
OUTER RING WIDTH1.9400 INCHES NOMINAL IN
SEAL QUANTITY2
BEARING SEAL TYPECONTACT
INNER RING WIDTH2.0000 INCHES NOMINAL IN
SPECIAL FEATURESOIL HOLES AND OIL GROOVE IN INNER RING,NO OIL HOLES OR OIL GROOVE IN OUTER RING;NEEDLE BEARING STYLE:NO. 432 OF OLD FIIG A04400;ROLLER OD:2.1250 IN. NOM.;ROLLING ELEMENT GROOVE QTY:2;RING ALIGNING:NOT INCLUDED;OTHER MATERIAL FOR END PLATE,INNER RING,OUTER RING AND ROLLER:STEEL,QQ-S-700 OR STEEL,ASTM A304,A322AND A331;OTHER MATERIAL FOR SEAL IS:PLASTIC,POLYAMIDE,L-P-410,TYPE 6/6 OR PLASTIC,ACETAL RESIN,L-P-392 OR PLASTIC,POLYESTER ELASTOMER IN
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME NEEDLE BEARINGS
LUBRICATION MATERIALGREASE
MATERIALSTEEL COMP 4615 OR STEEL COMP 4617 OR STEEL COMP 4620 OR STEEL COMP 8620 OR STEEL COMP E50100 OR STEEL COMP E52100 OR STEEL COMP E51100 OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 7
MS21439-124Interchangeable
interchangeable cross-reference
interchangeable
MS21439-106Interchangeable
interchangeable cross-reference
interchangeable
AS21439Interchangeable
interchangeable cross-reference
interchangeable
MS21439-110Interchangeable
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 MS21439-114?
MS21439-114 is a BEARING,ROLLER,NEEDLE.
What parts can replace MS21439-114?
There are 7 known substitutes for MS21439-114: MS21439-124, MS21439-106, AS21439 and 4 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS21439-114?
MS21439-114 is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-217-2843. This indicates validated use in U.S. government and defense supply chains.
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