Racine Pump Controls SV 51 thru 63 Series / cessna, Cylinder Information, hydraulic, motor, Neque, packing, packing or seal kit, parker, pump, racine, seal kit, sundstrand, sundstrand sauer danfoss, swashplate bearing, tie rod end cylinder, torquemotor, vane pump, Vane Pump Information, vee packing / By Susan Susan A = Don’t tighten to much Proportional control – these kits will only do one manual control and proportional control. Bolt B-190, Socket head cap screw part number 953685. Socket head screw cap part number 405996.Load SensorTorque LimitingSolenoid VentSingle StageHydraulic Two PressureSolenoid two pressureCode ChartIf you have any other questions, call us at 662-871-8403 or 800-361-0068[email protected]