Abstract: A damping subassembly for a weigh cell or the like comprises a sprocket wheel, a spool-like valve and a perforated piston disc assembled coaxially, the sprocket and the valve being mounted for movement in unison as the sprocket is rotated about its axis. When the sprocket-valve combination is rotated, its axial separation from the perforated disc is varied. The sprocket, valve and perforated disk are mounted to the weighing platform for axial movement in such a way that sprocket, valve and disc move upwardly and downwardly. A fixed-position bracket has an aperture in which a removable dashpot cup is mounted, the aperture and cup also being coaxially mounted relative to the sprocket, valve and piston disc. The valve-piston disc assembly moves axially into the cup through the aperture in the bracket.