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A65789 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
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Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The INSERT,ENGINE VALVE SEAT is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, overall_height: 0.258 INCHES NOMINAL IN, hardness_rating: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL, style_designator: PLAIN, seat_angle_in_deg: 0.500 NOMINAL, body_inside_diameter: 1.375 INCHES NOMINAL IN. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2815-00-567-4366, 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
A65789
NSN: 2815-00-567-4366
FSC: 2815
CAGE: 15434 — CUMMINS INC. (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_height0.258 INCHES NOMINAL IN
hardness_rating40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
style_designatorPLAIN
seat_angle_in_deg0.500 NOMINAL
body_inside_diameter1.375 INCHES NOMINAL IN
body_outside_diameter1.690 INCHES NOMINAL IN
seating_surface_shapeANGULAR
NSN2815-00-567-4366
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available INSERT,ENGINE VALVE SEAT TITLE COMPONENT PN A65789 MFR INSERT,ENGINE VALVE SE
KEY FEATURES
•
MATERIAL: STEEL OVERALL
•
STYLE DESIGNATOR: PLAIN
•
SEATING SURFACE SHAPE: ANGULAR
•
HARDNESS RATING: 40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
•
BODY INSIDE DIAMETER: 1.375 INCHES NOMINAL IN
•
SEAT ANGLE IN DEG: 0.500 NOMINAL
•
BODY OUTSIDE DIAMETER: 1.690 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIALSTEEL OVERALL
STYLE DESIGNATORPLAIN
SEATING SURFACE SHAPEANGULAR
HARDNESS RATING40.0 ROCKWELL C MINIMUM AND 45.0 ROCKWELL C MAXIMUM OVERALL
BODY INSIDE DIAMETER1.375 INCHES NOMINAL IN
SEAT ANGLE IN DEG0.500 NOMINAL
BODY OUTSIDE DIAMETER1.690 INCHES NOMINAL IN
OVERALL HEIGHT0.258 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
R7Interchangeable
interchangeable cross-reference
interchangeable
C3593-1PC133Interchangeable
interchangeable cross-reference
interchangeable
C11735-7PC140Interchangeable
interchangeable cross-reference
interchangeable
C3457-7PC140Interchangeable
interchangeable cross-reference
interchangeable
37Interchangeable
interchangeable cross-reference
interchangeable
R7YInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is A65789?
A65789 is a INSERT,ENGINE VALVE SEAT.
What parts can replace A65789?
There are 13 known substitutes for A65789: R7, C3593-1PC133, C11735-7PC140 and 10 more. Substitute compatibility should be verified for your specific system.
Is A65789 still available?
A65789 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