This specification has been declared "CANCELLED" by the Aerospace Materials Division, SAE, as of July, 2007, and has been superseded by AMS 2460, Plating Chromium. The requirements of the latest issue of AMS 2460 shall be fulfilled whenever reference is made to the cancelled AMS-QQ-C-320. By this action, this document will remain listed in the Numerical Section of the Index of Aerospace Material Specifications, noting that it has been superseded by AMS 2460. This specification covers the requirements for electrodeposited chromium plating.