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CFN70235 ✓ 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 LOCK,VALVE SPRING RETAINER is a the manufacturer industrial component. Key specifications include material: STEEL, overall_height: 0.372 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN, style_designator: STRAIGHT BORE W/TWO GROOVES-LOWER OUTSIDE RADIUS, thread_provision: UNTHREADED, first_groove_width: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN, second_groove_width: 0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-428-3544, 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
CFN70235
NSN: 2805-00-428-3544
FSC: 2805
CAGE: 82254 — CURTIS DYNA-FOG, LTD. (USA)
SPECIFICATIONS
materialSTEEL
overall_height0.372 INCHES MINIMUM AND 0.379 INCHES MAXIMUM IN
style_designatorSTRAIGHT BORE W/TWO GROOVES-LOWER OUTSIDE RADIUS
thread_provisionUNTHREADED
first_groove_width0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
second_groove_width0.020 INCHES MINIMUM AND 0.025 INCHES MAXIMUM IN
fsc_application_dataVALVES GROUP,GASOLINE ENGINE,NONAIRCRAFT
casehardening_indicatorNOT CASEHARDENED
largest_inside_diameter0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
minimum_inside_diameter0.284 INCHES IN
largest_outside_diameter0.468 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
outside_included_angle_in_deg14.250
NSN2805-00-428-3544
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available LOCK,VALVE SPRING RETAINER TITLE COMPONENT PN CFN70235 MFR LOCK,VALVE SPRING RETA
KEY FEATURES
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
LARGEST INSIDE DIAMETER: 0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
•
DISTANCE BETWEEN FIRST AND SECOND RIDGE CENTERS: 0.106 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
•
OUTSIDE INCLUDED ANGLE IN DEG: 14.250
•
DISTANCE FROM BOTTOM TO FIRST RIDGE CENTER: 0.1280 INCHES MINIMUM AND 0.1365 INCHES MAXIMUM IN
•
LARGEST OUTSIDE DIAMETER: 0.468 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
•
DISTANCE FROM BOTTOM TO FIRST GROOVE CENTER: 0.128 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS (FLIS)
CASEHARDENING INDICATORNOT CASEHARDENED
LARGEST INSIDE DIAMETER0.308 INCHES MINIMUM AND 0.312 INCHES MAXIMUM IN
DISTANCE BETWEEN FIRST AND SECOND RIDGE CENTERS0.106 INCHES MINIMUM AND 0.115 INCHES MAXIMUM IN
OUTSIDE INCLUDED ANGLE IN DEG14.250
DISTANCE FROM BOTTOM TO FIRST RIDGE CENTER0.1280 INCHES MINIMUM AND 0.1365 INCHES MAXIMUM IN
LARGEST OUTSIDE DIAMETER0.468 INCHES MINIMUM AND 0.472 INCHES MAXIMUM IN
DISTANCE FROM BOTTOM TO FIRST GROOVE CENTER0.128 INCHES MINIMUM AND 0.136 INCHES MAXIMUM IN
MATERIALSTEEL
FSC APPLICATION DATAVALVES GROUP,GASOLINE ENGINE,NONAIRCRAFT
THREAD PROVISIONUNTHREADED
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
2400-13Interchangeable
interchangeable cross-reference
interchangeable
1377-M346Interchangeable
interchangeable cross-reference
interchangeable
200813Interchangeable
interchangeable cross-reference
interchangeable
23001-3Interchangeable
interchangeable cross-reference
interchangeable
503-4-10323-000Interchangeable
interchangeable cross-reference
interchangeable
CFN70224Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is CFN70235?
CFN70235 is a LOCK,VALVE SPRING RETAINER.
What parts can replace CFN70235?
There are 11 known substitutes for CFN70235: 2400-13, 1377-M346, 200813 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for CFN70235?
CFN70235 is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-428-3544. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026