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Technical Data Sheet
PartsTable / COMPONENT / 215421
215421 ✓ 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,PISTON is a the manufacturer industrial component. Key specifications include ring_style: CONCENTRIC, joint_style: VERTICAL JOINT, end_item_identification: 3810-01-165-0646. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-01-268-7400, 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
215421
NSN: 4310-01-268-7400
FSC: 4310
CAGE: 81495 — KOEHRING CRANES, INC DBA TEREX CRANES DIV WAVERLY OPERATIONS (USA)
SPECIFICATIONS
ring_styleCONCENTRIC
joint_styleVERTICAL JOINT
end_item_identification3810-01-165-0646
NSN4310-01-268-7400
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available RING,PISTON TITLE COMPONENT PN 215421 MFR RING,PISTON
KEY FEATURES
•
RING STYLE: CONCENTRIC
•
JOINT STYLE: VERTICAL JOINT
TECHNICAL CHARACTERISTICS (FLIS)
RING STYLECONCENTRIC
JOINT STYLEVERTICAL JOINT
END ITEM IDENTIFICATION3810-01-165-0646
VERIFIED SUBSTITUTES & CROSS-REFERENCES 5
W13Interchangeable
interchangeable cross-reference
interchangeable
25636Interchangeable
interchangeable cross-reference
interchangeable
25683Interchangeable
interchangeable cross-reference
interchangeable
YC9BInterchangeable
interchangeable cross-reference
interchangeable
207442Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 215421?
215421 is a RING,PISTON.
What parts can replace 215421?
There are 5 known substitutes for 215421: W13, 25636, 25683 and 2 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 215421?
215421 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4310-01-268-7400. 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