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710A4 — TAPPET,ENGINE POPPET VALVE

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

710A4: TAPPET,ENGINE POPPET VALVE.

The TAPPET,ENGINE POPPET VALVE is a the manufacturer industrial component. Key specifications include material: IRON CAST OVERALL, adjustability: NONADJUSTABLE, overall_length: 2.250 INCHES NOMINAL IN, cam_end_diameter: 1.123 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN, operation_method: HYDRAULIC, size_designation: STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 2805-00-753-8628, 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
710A4
NSN: 2805-00-753-8628
FSC: 2805 — Gasoline Reciprocating Engines, Except Aircraft; and Components
CAGE: 56442 — DIAMOND REO TRUCK CO (USA)
SPECIFICATIONS
materialIRON CAST OVERALL
adjustabilityNONADJUSTABLE
overall_length2.250 INCHES NOMINAL IN
cam_end_diameter1.123 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
operation_methodHYDRAULIC
size_designationSTANDARD
special_featuresCONCENTRIC HOLE IS TAPPERED,TIP END 0.200 IN.RADIUS IN
spherical_radius80.000 INCHES NOMINAL IN
style_designatorCOUNTERBORED PUSH ROD END
counterbore_depth1.780 INCHES NOMINAL IN
body_hole_diameter0.190 INCHES NOMINAL IN
counterbore_diameter0.940 INCHES NOMINAL IN
NSN2805-00-753-8628
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAPPET,ENGINE POPPET VALVE TITLE COMPONENT PN 710A4 MFR TAPPET,ENGINE POPPET V
KEY FEATURES
•
FSC APPLICATION DATA: ENGINES,RECIPROCATING,GASOLINE,EXCEPT AIRCRAFT PRIME MOVING
•
CAM END DIAMETER: 1.123 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
•
SPHERICAL RADIUS: 80.000 INCHES NOMINAL IN
•
CONCENTRIC HOLE DEPTH: 1.880 INCHES NOMINAL IN
•
STYLE DESIGNATOR: COUNTERBORED PUSH ROD END
•
METALLIC HARDNESS RATING AND LOCATION: 50.0 ROCKWELL C MINIMUM OVERALL
•
COUNTERBORE DEPTH: 1.780 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
FSC APPLICATION DATAENGINES,RECIPROCATING,GASOLINE,EXCEPT AIRCRAFT PRIME MOVING
CAM END DIAMETER1.123 INCHES MINIMUM AND 1.124 INCHES MAXIMUM IN
SPHERICAL RADIUS80.000 INCHES NOMINAL IN
CONCENTRIC HOLE DEPTH1.880 INCHES NOMINAL IN
STYLE DESIGNATORCOUNTERBORED PUSH ROD END
METALLIC HARDNESS RATING AND LOCATION50.0 ROCKWELL C MINIMUM OVERALL
OVERALL LENGTH2.250 INCHES NOMINAL IN
COUNTERBORE DEPTH1.780 INCHES NOMINAL IN
ADJUSTABILITYNONADJUSTABLE
COUNTERBORE DIAMETER0.940 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 1
913571Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 710A4?
710A4 is a TAPPET,ENGINE POPPET VALVE.
What parts can replace 710A4?
There is 1 known substitute for 710A4: 913571. Substitute compatibility should be verified for your specific system.
What is the NSN for 710A4?
710A4 is cataloged in the U.S. Government catalog under NSN 2805-00-753-8628. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.