Sleeve holder for a hydraulic cylinder

A hydraulic cylinder, comprising:

• an outer cylindrical tube including an open end, a first female threaded portion, and a second female threaded portion, the second female threaded portion being disposed closer to the open end than the first female threaded portion;
• a movable element slideably received in the outer cylindrical tube through the open end;
• a sleeve holder threadably engaged with the first female threaded portion to seal an annular space formed between the outer cylindrical tube and the movable element, the sleeve holder including a first male threaded portion mating with the first female threaded portion;
• and
• a locking ring threadably engaged with the second female threaded portion to secure the sleeve holder to the outer cylindrical tube, the locking ring including a second male threaded portion mating with the second female threaded portion,
• wherein the sleeve holder comprises a radially outwardly projecting flange adjacent to the first male threaded portion, the flange configured to serve as an axial stop when the sleeve holder is screwed into the outer cylindrical tube.