Pankaj potentiometers provides a short stroke conductive plastic linear motion potentiometer, model lcp-20. Resistance values available are 1k, 2k, 5k and 10kohms over the stroke length of 20 mm. The conductive plastic element gives smooth and infinite resolution output with very long life of 1 million cycles. Spindle is spring returned type and the housing is glass filled square nylon body of 20 mm. It has flange type mounting with two 4 mm screws. Output connections are through tinned copper teflon wires.