AMS 3216 covers a fluorocarbon (FKM) elastomer that is often used to manufacture components that often encounter fuels, synthetic lubricants, and specific hydraulic fluids, generally ranging from -20°F (-29°C) to 400°F (204°C). AMS 3216 is best for sheets, strips, tubing, extrusions and molded shapes made from FKM elastomers.

AMS 3216 includes a comprehensive list of physical property requirements and physical testing procedures for assessing this class of FKM elastomers, as well as acceptance tests for quality assurance.

AMS 3216 has a few limitations. It is not appropriate for molded rings, compression seals, O-ring cord, or molded-in-place gaskets for aerospace applications; these products are better suited to AMS 7276. Additionally, the FKM elastomers described in AMS 33216 are not suitable for contact with high temperature stabilized (HST) engine oils.

How Smithers Can Help

Smithers material testing experts can work with your team to understand material requirements and design a testing program to validate materials to this standard. 

Please note: The information outlined above is to be used as a reference for AMS 3216 Fluorocarbon Rubber Fuel and Oil Resistant 70-80. Please refer to SAE International for full details and the most current revision.

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