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1DF66 ✓ 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 OVERALL, flats_length: 0.219 INCHES NOMINAL IN, adjustability: ADJUSTABLE, cam_end_height: 0.095 INCHES NOMINAL IN, overall_length: 3.113 INCHES NOMINAL IN, adjusting_device: INCLUDED. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-339-5598, 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
1DF66
NSN: 2805-00-339-5598
FSC: 2805
CAGE: 23382 — FWD SEAGRAVE HOLDINGS LP (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flats_length0.219 INCHES NOMINAL IN
adjustabilityADJUSTABLE
cam_end_height0.095 INCHES NOMINAL IN
overall_length3.113 INCHES NOMINAL IN
adjusting_deviceINCLUDED
cam_end_diameter0.992 INCHES NOMINAL IN
operation_methodMECHANICAL
size_designationSTANDARD
special_featuresSECOND GROOVE ON ITEM0.125 IN. W,0.593 IN. DIA,1.375 IN. C TO C FROM 1ST GROOVE IN
style_designatorINTERNAL THREAD AND WRENCHING FLATS PUSH ROD END
body_groove_width0.125 INCHES NOMINAL IN
NSN2805-00-339-5598
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available TAPPET,ENGINE POPPET VALVE TITLE COMPONENT PN 1DF66 MFR TAPPET,ENGINE POPPET V
KEY FEATURES
•
CONCENTRIC HOLE DIAMETER: 0.375 INCHES NOMINAL IN
•
CAM END HEIGHT: 0.095 INCHES NOMINAL IN
•
OPERATION METHOD: MECHANICAL
•
WIDTH ACROSS FLATS: 0.492 INCHES NOMINAL IN
•
CAM END DIAMETER: 0.992 INCHES NOMINAL IN
•
DISTANCE FROM BODY GROOVE CENTER TO CAM END: 0.625 INCHES NOMINAL IN
•
ADJUSTING DEVICE: INCLUDED
TECHNICAL CHARACTERISTICS (FLIS)
CONCENTRIC HOLE DIAMETER0.375 INCHES NOMINAL IN
CAM END HEIGHT0.095 INCHES NOMINAL IN
OPERATION METHODMECHANICAL
SPECIAL FEATURESSECOND GROOVE ON ITEM0.125 IN. W,0.593 IN. DIA,1.375 IN. C TO C FROM 1ST GROOVE IN
WIDTH ACROSS FLATS0.492 INCHES NOMINAL IN
CAM END DIAMETER0.992 INCHES NOMINAL IN
DISTANCE FROM BODY GROOVE CENTER TO CAM END0.625 INCHES NOMINAL IN
ADJUSTING DEVICEINCLUDED
BODY GROOVE DIAMETER0.593 INCHES NOMINAL IN
MATERIALSTEEL OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 23
CF15-700Interchangeable
interchangeable cross-reference
interchangeable
15-700Interchangeable
interchangeable cross-reference
interchangeable
CF15Interchangeable
interchangeable cross-reference
interchangeable
415700Interchangeable
interchangeable cross-reference
interchangeable
F63Interchangeable
interchangeable cross-reference
interchangeable
3540-00-360-0151Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1DF66?
1DF66 is a TAPPET,ENGINE POPPET VALVE.
What parts can replace 1DF66?
There are 23 known substitutes for 1DF66: CF15-700, 15-700, CF15 and 20 more. Substitute compatibility should be verified for your specific system.
Is 1DF66 still available?
1DF66 is currently cancelled.
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Last verified: July 2026