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SAE AMS7311 Revision G, January 1, 2004
Complete Document
Active, Most Current
Piston Rings, Centrifugally-Case Alloyed Iron 0.50Mo - 0.50Cu
Includes all amendments and changes through Reaffirmation Notice , September 2013
Additional Comments: NONCURRENT
Page Count:7
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AIA/NAS Aerospace Standards

This specification covers a centrifugally-cast, alloyed iron in the form of sleeves for the fabrication of piston rings.


Primarily for use as top compression rings in aircraft piston engines. Rings usually require chromium plating for compatibility with the cylinder barrel material.