SAE AMS7257 PDF
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Rings, Sealing, Perfluorocarbon (Ffkm) Rubber High Temperature Fluid Resistant 70-80
Description
This specification covers a perfluorocarbon (FFKM) rubber in the form of molded o-rings. These sealing rings have been used typically in applications in contact with air or a variety of fuels, lubricants and hydraulic fluids from -15 to +290 degrees C (+5 to 554 degrees F), but usage is not limited to such applications. Each application, however, has to be considered individually. Instances are known when these rings have been used below -15 degrees C (+5 degrees F) and above 290 degrees C (554 degrees F). The cross section of such rings is usually not over 0.275 inch (6.98 mm) in diameter or thickness.
History
| AMS7257E | 2014-09-05 | Latest | Revised |
| AMS7257D | 2012-11-20 | Historical | Revised |
| AMS7257C | 1998-08-01 | Historical | Reaffirmed |
| AMS7257B | 1992-01-01 | Historical | Revised |
| AMS7257A | 2011-08-15 | Historical | Reaffirmed |
| AMS7257 | 1985-04-01 | Historical | Issued |
| ISSUING COMMITTEE | AMS CE Elastomers Committee |
|---|---|
| DATE | 1985-04-01 |
| DOI | |
| ISCURRENT | |
| PAGE | 3 |
| PUBLISHER | SAE International |
| REVISED | ISSUED |
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