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Technical Data Sheet
PartsTable / COMPONENT / MS27641-5R
MS27641-5R ✓ 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 OUTER RING, bore_diameter: 0.3125 INCHES NOMINAL IN, load_direction: RADIAL, inner_ring_width: 0.2970 INCHES NOMINAL IN, outer_ring_width: 0.2340 INCHES NOMINAL IN, special_features: HEAT STABILIZED FOR OPERATION AT 250 DEG F; 80 PCT FULL OF SPECIFIED LUBRICANT DEGF. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-123-2323, 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
MS27641-5R
NSN: 3110-01-123-2323
FSC: 3110
CAGE: 0U583 — SAE INTERNATIONAL DBA SAE INTERNATIONAL (USA)
SPECIFICATIONS
materialSTEEL COMP E52100 OUTER RING
bore_diameter0.3125 INCHES NOMINAL IN
seal_quantity2
load_directionRADIAL
inner_ring_width0.2970 INCHES NOMINAL IN
outer_ring_width0.2340 INCHES NOMINAL IN
special_featuresHEAT STABILIZED FOR OPERATION AT 250 DEG F; 80 PCT FULL OF SPECIFIED LUBRICANT DEGF
style_designatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
bearing_seal_typeCONTACT
surface_treatmentCADMIUM EXPOSED SURFACES AS MOUNTED
lubrication_materialGREASE
overall_outside_diameter0.8125 INCHES NOMINAL IN
NSN3110-01-123-2323
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS27641-5R · 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: 0.3125 INCHES NOMINAL IN
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
•
OUTER RING WIDTH: 0.2340 INCHES NOMINAL IN
•
LUBRICATION MATERIAL: GREASE
•
LOAD DIRECTION: RADIAL
•
SEAL QUANTITY: 2
•
BEARING SEAL TYPE: CONTACT
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER0.3125 INCHES NOMINAL IN
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
SPECIAL FEATURESHEAT STABILIZED FOR OPERATION AT 250 DEG F; 80 PCT FULL OF SPECIFIED LUBRICANT DEGF
OUTER RING WIDTH0.2340 INCHES NOMINAL IN
LUBRICATION MATERIALGREASE
LOAD DIRECTIONRADIAL
SEAL QUANTITY2
BEARING SEAL TYPECONTACT
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
INNER RING WIDTH0.2970 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
AS27641Interchangeable
interchangeable cross-reference
interchangeable
MKP20AInterchangeable
interchangeable cross-reference
interchangeable
MS27641-10Interchangeable
interchangeable cross-reference
interchangeable
561-6404325-31Interchangeable
interchangeable cross-reference
interchangeable
MS27641-12Interchangeable
interchangeable cross-reference
interchangeable
AS7949Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27641-5R?
MS27641-5R is a BEARING,BALL,AIRFRAME.
What parts can replace MS27641-5R?
There are 23 known substitutes for MS27641-5R: AS27641, MKP20A, MS27641-10 and 20 more. Substitute compatibility should be verified for your specific system.
What is the NSN for MS27641-5R?
MS27641-5R is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-01-123-2323. This indicates validated use in U.S. government and defense supply chains.
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PartsTable Design LLC · partstable.com
Last verified: July 2026