Standard Pack = 1 piece(s). Cylinder Capacity, (tons) = 55 ; Stroke, (in) = 3.98 ; Cylinder Effective Area, (in2) = 10.99 ; Pressure at Capacity, (psi) = 10,000 ; Oil Capacity, (in3) = 43.74 ; Collapsed Height, A (in) = 8.94 ; Extended Height, B (in) = 12.92 ; Cylinder Bore Dia., C (in) = 3.74 ; Outside Dia., D (in) = 5 ; Plunger Dia., E (in) = 3.15 ; Saddle Dia., F (in) = 2.76 ; Base to Inlet Port, G (in) = 1.22 ; Collar Thread, H (in) = 5 - 12 ; Collar Thread Length, L (in) = 2.17 ; Plunger Internal Thread, J (in) = ; Plunger Thread Length, K (in) = ; Base Mounting Hole, Bolt Circle, X (in) = 3.75 ; Base Mounting Hole, Thread, Y (in) = 1/2"-13UNC ; Base Mounting Hole, Thread Depth, Z (in) = .75 ;