Motion Control – Compact Push/Pull Solenoids Motion Control – Van Nuys, CA – The S-08-54 Series of Low-Profile Pull Type Clapper Solenoids from Magnetic Sensor Systems (MSS) are just 0.54 in (13.8mm). in diameter and 0.80 in (20.3mm). long and the overall extended length is 1.08 in (27.4mm).