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Technical Data Sheet
PartsTable / COMPONENT / K780
K780 ✓ 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

CONE AND ROLLERS,TAPERED ROLLER. Key specifications include material: STEEL OVERALL, cone_width: 1.8900 INCHES NOMINAL IN, bore_diameter: 4.0000 INCHES NOMINAL IN, style_designator: NORMAL ANGLE, cone_corner_radius: 0.1406 INCHES NOMINAL IN, end_item_identification: MRAP - COUGAR ISS 1.0; MRAP - COUGAR ISS 1.5. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 3110-00-100-0694, 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
K780
NSN: 3110-00-100-0694
FSC: 3110
CAGE: F0272 — SKF FRANCE (FRA)
SPECIFICATIONS
materialSTEEL OVERALL
cone_width1.8900 INCHES NOMINAL IN
bore_diameter4.0000 INCHES NOMINAL IN
style_designatorNORMAL ANGLE
cone_corner_radius0.1406 INCHES NOMINAL IN
end_item_identificationMRAP - COUGAR ISS 1.0; MRAP - COUGAR ISS 1.5
standard_tolerance_designationAFBMA CLASS 2
general_characteristics_item_descriptionSTEEL; CADMIUM PLATED; 1.875 IN. LG; 1.750 IN. W; 0.125 IN. THK; 0.750 IN. DIA HOLE IN
NSN3110-00-100-0694
COMPONENT DIAGRAM
TAPERED ROLLER BEARING — CUP & CONE ASSEMBLY CAGE CUP BORE CONE OD: — · BORE: — · WIDTH: — Single Row · PN: K780 · 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: 4.0000 INCHES NOMINAL IN
•
CONE CORNER RADIUS: 0.1406 INCHES NOMINAL IN
•
CONE WIDTH: 1.8900 INCHES NOMINAL IN
•
STANDARD TOLERANCE DESIGNATION: AFBMA CLASS 2
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: NORMAL ANGLE
TYPICAL APPLICATIONS
  • Long-term data archival and compliance retention
  • Offsite backup and disaster recovery
  • Air-gapped ransomware protection
  • Cold storage tier for infrequently accessed data
TECHNICAL CHARACTERISTICS (FLIS)
BORE DIAMETER4.0000 INCHES NOMINAL IN
CONE CORNER RADIUS0.1406 INCHES NOMINAL IN
CONE WIDTH1.8900 INCHES NOMINAL IN
STANDARD TOLERANCE DESIGNATIONAFBMA CLASS 2
END ITEM IDENTIFICATIONMRAP - COUGAR ISS 1.0; MRAP - COUGAR ISS 1.5
MATERIALSTEEL OVERALL
STYLE DESIGNATORNORMAL ANGLE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
1031P27-5Interchangeable
interchangeable cross-reference
interchangeable
T1031Interchangeable
interchangeable cross-reference
interchangeable
MS10009Interchangeable
interchangeable cross-reference
interchangeable
543-6289-002Interchangeable
interchangeable cross-reference
interchangeable
24-2029Interchangeable
interchangeable cross-reference
interchangeable
5GAS20Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is K780?
K780 is a CONE AND ROLLERS,TAPERED ROLLER.
What parts can replace K780?
There are 21 known substitutes for K780: 1031P27-5, T1031, MS10009 and 18 more. Substitute compatibility should be verified for your specific system.
Is K780 still available?
K780 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026