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Technical Data Sheet
PartsTable / COMPONENT / MS27640-3A
MS27640-3A ✓ 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,BALL,AIRFRAME is a the manufacturer industrial component. Key specifications include material: STEEL COMP E52100 INNER RING, bore_diameter: 0.1900 INCHES NOMINAL IN, load_direction: RADIAL, inner_ring_width: 0.2450 INCHES NOMINAL IN, outer_ring_width: 0.2030 INCHES NOMINAL IN, style_designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-023-4810, 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
MS27640-3A
NSN: 3110-00-023-4810
FSC: 3110
CAGE: 81343 — SOCIETY OF AUTOMOTIVE ENGINEERS INC (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 INNER RING
bore_diameter0.1900 INCHES NOMINAL IN
seal_quantity2
load_directionRADIAL
inner_ring_width0.2450 INCHES NOMINAL IN
outer_ring_width0.2030 INCHES NOMINAL IN
style_designatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
bearing_seal_typeCONTACT
surface_treatmentCADMIUM EXPOSED SURFACES AS MOUNTED
overall_outside_diameter0.6250 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
material_document_and_classificationAMS 3652 ASSN STD SINGLE MATERIAL RESPONSE OR AMS 3666 ASSN STD SINGLE MATERIAL RESPONSE SEAL
NSN3110-00-023-4810
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS27640-3A · 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
•
LOAD DIRECTION: RADIAL
•
SEAL QUANTITY: 2
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
•
OUTER RING WIDTH: 0.2030 INCHES NOMINAL IN
•
BEARING SEAL TYPE: CONTACT
•
INNER RING WIDTH: 0.2450 INCHES NOMINAL IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
TECHNICAL CHARACTERISTICS (FLIS)
LOAD DIRECTIONRADIAL
SEAL QUANTITY2
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
OUTER RING WIDTH0.2030 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
SPECIAL FEATURES80 PCT FULL OF MIL-G-81322 ALSO INTERNAL RADIAL CLEARANCE 0.0004-0.0010 IN. ALSO HEAT TREAT RING AND BALLS TO ROCKWELL C60 TO C66 AND STABLIZED FOR OPERATION AT 250 DEG F ALSO RADIAL AND LATERNAL ECCENTRICITY INNER RING 0.0010 IN. OUTER RING 0.0016 IN. IN
INNER RING WIDTH0.2450 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
OVERALL OUTSIDE DIAMETER0.6250 INCHES NOMINAL IN
MATERIALSTEEL COMP E52100 INNER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
K10ANG25Interchangeable
interchangeable cross-reference
interchangeable
AS27640Interchangeable
interchangeable cross-reference
interchangeable
KP10FS464Interchangeable
interchangeable cross-reference
interchangeable
KP3Interchangeable
interchangeable cross-reference
interchangeable
KP3FS160Interchangeable
interchangeable cross-reference
interchangeable
MS27640-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27640-3A?
MS27640-3A is a BEARING,BALL,AIRFRAME.
What parts can replace MS27640-3A?
There are 30 known substitutes for MS27640-3A: K10ANG25, AS27640, KP10FS464 and 27 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS27640-3A?
MS27640-3A is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-023-4810. 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