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Technical Data Sheet
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MS27640KP5A — Technical Data Sheet

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— · 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: PLASTIC POLYTETRAFLUOROETHYLENE SEAL, bore_diameter: 0.3125 INCHES NOMINAL IN, load_direction: RADIAL, inner_ring_width: 0.5580 INCHES NOMINAL IN, outer_ring_width: 0.3750 INCHES NOMINAL IN, style_designator: SINGLE ROW INNER RING EXTENDED BOTH SIDES. This part is cataloged in the Federal Logistics Information System under NSN 3110-00-023-7007, 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
MS27640KP5A
NSN: 3110-00-023-7007
FSC: 3110
CAGE: 96906 — MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS UNDER AUTHORITY OF DEFENSE STANDARDIZATION MANUAL 4120 3-M
SPECIFICATIONS
materialPLASTIC POLYTETRAFLUOROETHYLENE SEAL
bore_diameter0.3125 INCHES NOMINAL IN
seal_quantity2
load_directionRADIAL
inner_ring_width0.5580 INCHES NOMINAL IN
outer_ring_width0.3750 INCHES NOMINAL IN
style_designatorSINGLE ROW INNER RING EXTENDED BOTH SIDES
bearing_seal_typeCONTACT
surface_treatmentCADMIUM EXPOSED SURFACES AS MOUNTED
overall_outside_diameter1.2500 INCHES NOMINAL IN
standard_tolerance_designationAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
material_document_and_classification66 FED STD SINGLE MATERIAL RESPONSE OUTER RING
NSN3110-00-023-7007
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: MS27640KP5A · 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
•
OVERALL OUTSIDE DIAMETER: 1.2500 INCHES NOMINAL IN
•
LOAD DIRECTION: RADIAL
•
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATION: MIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
•
STANDARD TOLERANCE DESIGNATION: AFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
•
INNER RING WIDTH: 0.5580 INCHES NOMINAL IN
•
SEAL QUANTITY: 2
•
OUTER RING WIDTH: 0.3750 INCHES NOMINAL IN
•
BEARING SEAL TYPE: CONTACT
TECHNICAL CHARACTERISTICS
OVERALL OUTSIDE DIAMETER1.2500 INCHES NOMINAL IN
LOAD DIRECTIONRADIAL
LUBRICATION MATERIAL DOCUMENT AND CLASSIFICATIONMIL-G-81322 MIL SPEC SINGLE MATERIAL RESPONSE
STANDARD TOLERANCE DESIGNATIONAFBMA STD TOLERANCE FOR AIRFRAME BALL BEARINGS
INNER RING WIDTH0.5580 INCHES NOMINAL IN
SEAL QUANTITY2
OUTER RING WIDTH0.3750 INCHES NOMINAL IN
BEARING SEAL TYPECONTACT
SPECIAL FEATURES80 PCT. FULL OF MIL-G-81322,INTERNAL RADIAL CLEARANCE 0.0004 IN. MIN,0.0010 IN. MAX,HEAT TREAT RINGS AND BALLS TO ROCKWELL C 60 TO 66 AND STABILIZED FOR OPERATION AT 250 DEG. F,RADIAL AND LATERAL ECCENTRICITY INNER RING 0.0010 IN. OUTER RING 0.0016 IN. IN
MATERIALSTEEL COMP E52100 OUTER RING
VERIFIED SUBSTITUTES & CROSS-REFERENCES 30
K10ANG25InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
AS27640InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
KP10FS464InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
KP3InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
KP3FS160InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
KP3LInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is MS27640KP5A?
MS27640KP5A is a BEARING,BALL,AIRFRAME.
What parts can replace MS27640KP5A?
There are 30 known substitutes for MS27640KP5A: K10ANG25, AS27640, KP10FS464 and 27 more. Substitute compatibility should be verified for your specific system.
Is MS27640KP5A still available?
MS27640KP5A is currently cancelled.
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PartsTable Design LLC · partstable.com
Last verified: September 2026