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Technical Data Sheet
PartsTable / COMPONENT / 503-4-10323-000
503-4-10323-000 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

The TAPPET,ENGINE POPPET VALVE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, adjustability: NONADJUSTABLE, cam_end_height: 0.080 INCHES NOMINAL IN, overall_length: 2.028 INCHES NOMINAL IN, cam_end_diameter: 1.115 INCHES NOMINAL IN, operation_method: MECHANICAL. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-544-0717, 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
503-4-10323-000
NSN: 2805-00-544-0717
FSC: 2805
CAGE: K2523 — EATON LIMITED (GBR)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
adjustabilityNONADJUSTABLE
cam_end_height0.080 INCHES NOMINAL IN
overall_length2.028 INCHES NOMINAL IN
cam_end_diameter1.115 INCHES NOMINAL IN
operation_methodMECHANICAL
size_designationSTANDARD
casehardening_indicatorNOT CASEHARDENED
material_document_and_classificationSAE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
metallic_hardness_rating_and_location50.0 ROCKWELL C MINIMUM OVERALL
NSN2805-00-544-0717
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAPPET,ENGINE POPPET VALVE TITLE COMPONENT PN 503-4-10323-000 MFR TAPPET,ENGINE POPPET V
KEY FEATURES
•
MATERIAL DOCUMENT AND CLASSIFICATION: SAE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
METALLIC HARDNESS RATING AND LOCATION: 50.0 ROCKWELL C MINIMUM OVERALL
•
CAM END HEIGHT: 0.080 INCHES NOMINAL IN
•
CAM END DIAMETER: 1.115 INCHES NOMINAL IN
•
OPERATION METHOD: MECHANICAL
•
ADJUSTABILITY: NONADJUSTABLE
•
SIZE DESIGNATION: STANDARD
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONSAE 1018 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CASEHARDENING INDICATORNOT CASEHARDENED
METALLIC HARDNESS RATING AND LOCATION50.0 ROCKWELL C MINIMUM OVERALL
CAM END HEIGHT0.080 INCHES NOMINAL IN
CAM END DIAMETER1.115 INCHES NOMINAL IN
OPERATION METHODMECHANICAL
ADJUSTABILITYNONADJUSTABLE
SIZE DESIGNATIONSTANDARD
MATERIALSTEEL COMP 1018 OVERALL
OVERALL LENGTH2.028 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
12310Interchangeable
interchangeable cross-reference
interchangeable
6-6502Interchangeable
interchangeable cross-reference
interchangeable
AD250Interchangeable
interchangeable cross-reference
interchangeable
503-4-10322-000Interchangeable
interchangeable cross-reference
interchangeable
CFN70235Interchangeable
interchangeable cross-reference
interchangeable
240013Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 503-4-10323-000?
503-4-10323-000 is a TAPPET,ENGINE POPPET VALVE.
What parts can replace 503-4-10323-000?
There are 12 known substitutes for 503-4-10323-000: 12310, 6-6502, AD250 and 9 more. Substitute compatibility should be verified for your specific system.
Is 503-4-10323-000 still available?
503-4-10323-000 is currently cancelled.
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Last verified: July 2026