The Oerlikon ARQ900102111751 Outer Mask is a hard copper outer mask component designed for the Oerlikon ARQ900 system, carrying the part identifiers ARQ900102111751 and 102111751. It specifies a 118.5 mm outer diameter (OD), defining its size for compatibility with related ARQ900 parts. Made from hard copper, this outer mask reflects the material designation of the part and is produced by Oerlikon.
