Encryption component

An encryption component is "[a]ny encryption commodity or software (except source code), including encryption chips, integrated circuits, application specific encryption toolkits, or executable or linkable modules that alone are incapable of performing complete cryptographic functions, and is designed or intended for use in or the production of another encryption item."

Source
U.S. Export Administration Regulations, Part 772 (15 C.F.R. §772.1).