Standard Pack = 1 piece(s). Cylinder Capacity, (tons) = 30 ; Stroke, (in) = 6.11 ; Cylinder Effective Area, (in2) = 6.32 ; Pressure at Capacity, (psi) = 9,488 ; Oil Cap., (in3) = 38.67 ; Min. Height, A (in) = 13.02 ; Max. Height, B (in) = 19.13 ; O.D., D (in) = 4.5 ; Plunger I.D., C (in) = 1.311 ; Plunger O.D., E (in) = 2.48 ; Plunger Internal Thread, J (in) = 1-13/16"-16UN ; Internal Thread Length, K (in) = .87 ; Collar Thread Dia., H (in) = 4-1/2 -12 ; Collar Thread Lgth., L (in) = 1.75 ; Base to Inlet Port, G (in) = .81 ; Base Mounting Hole Bolt Circle, X (in) = ; Base Mounting Hole Thread, Y (in) = 3/8"-16UNC ; Base Mounting Hole Thread Depth, Z (in) = .55 ;