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Technical Data Sheet
PartsTable / COMPONENT / VF4-4S1
VF4-4S1 ✓ 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 RING SET,PISTON is a the manufacturer industrial component. Key specifications include standard_bore_diameter: 3.250 INCHES IN, ring_set_component_parts: COMPRESSION RING,DC125-2,66289,2,OIL RING,DC125-2,66289,2,OIL RING,DC112A,66289,1,SCRAPER RING,DC210,66289,1. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 2805-00-555-5817, 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
VF4-4S1
NSN: 2805-00-555-5817
FSC: 2805
CAGE: 66289 — WISCONSIN MOTORS, LLC (USA)
SPECIFICATIONS
standard_bore_diameter3.250 INCHES IN
ring_set_component_partsCOMPRESSION RING,DC125-2,66289,2,OIL RING,DC125-2,66289,2,OIL RING,DC112A,66289,1,SCRAPER RING,DC210,66289,1
piston_accommodation_quantity1
NSN2805-00-555-5817
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING SET,PISTON TITLE COMPONENT PN VF4-4S1 MFR RING SET,PISTON
KEY FEATURES
•
STANDARD BORE DIAMETER: 3.250 INCHES IN
•
PISTON ACCOMMODATION QUANTITY: 1
•
RING SET COMPONENT PARTS: COMPRESSION RING,DC125-2,66289,2,OIL RING,DC125-2,66289,2,OIL RING,DC112A,66289,1,SCRAPER RING,DC210,66289,1
TECHNICAL CHARACTERISTICS (FLIS)
STANDARD BORE DIAMETER3.250 INCHES IN
PISTON ACCOMMODATION QUANTITY1
RING SET COMPONENT PARTSCOMPRESSION RING,DC125-2,66289,2,OIL RING,DC125-2,66289,2,OIL RING,DC112A,66289,1,SCRAPER RING,DC210,66289,1
VERIFIED SUBSTITUTES & CROSS-REFERENCES 28
112966AInterchangeable
interchangeable cross-reference
interchangeable
17T601Interchangeable
interchangeable cross-reference
interchangeable
305MInterchangeable
interchangeable cross-reference
interchangeable
7111X1AInterchangeable
interchangeable cross-reference
interchangeable
7111X1J9Interchangeable
interchangeable cross-reference
interchangeable
2598JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is VF4-4S1?
VF4-4S1 is a RING SET,PISTON.
What parts can replace VF4-4S1?
There are 28 known substitutes for VF4-4S1: 112966A, 17T601, 305M and 25 more. Substitute compatibility should be verified for your specific system.
Is VF4-4S1 still available?
VF4-4S1 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