Hydraulic Work Support Lower Flange Bronze Steel Max Support Force 2 500 lb Stroke Length 3/8 in Pressure Range 700 to 5000 psi Retracted Height 2.98 in Body Thread 1-3/8 In.-18 Series WSL Plunger Contact Spring Force Extended 3.4 lb Plunger Contact Spring Force Retracted 5.2 lb Oil Capacity 0.06 cu in Max Oil Flow 60 cu in/min Oil Port Size #4 SAE Extended Height 3.35 in Outside Dia 1 3/8 in Plunger Dia 0.629 in Includes Contact Button Manifold Seal