Hydraulic Work Support, Threaded Body, Bronze, Steel, Max. Support Force 1,650 lb, Stroke Length 3/8 in, Pressure Range 700 to 5000 psi, Retracted Height 3.13 in, Body Thread 1-3/8 In.-18, Series WST, Plunger Contact Spring Force Extended 2.0 lb, Plunger Contact Spring Force Retracted 5.8 lb, Oil Capacity 0.04 cu in, Max. Oil Flow 40 cu in/min, Oil Port Size #2 SAE, Extended Height 3.51 in, Outside Dia. 1 3/8 in, Plunger Dia. 0.591 in, Includes Contact Button, Manifold Seal