A fitting arrangement for a cask is disclosed having a fitting sleeve with a riser pipe arranged therein, and resiliently moveable relative thereto. The fitting sleeve has a conically extending inner sealing surface tapering toward an upper end, and a seal is incorporated between the inner sealing surface and the upper end of the riser conduit. The riser pipe is pressed with the seal against the sealing surface with a spring force, and the seal is arranged internally in the upper end of the riser pipe, wherein a sealing body is arranged in the upper end of the riser pipe and is resiliently moveable relative thereto, which sealing body comes to bear with form-fit engagement on an internal sealing surface of the seal as a result of the spring force.