Vacuum Sensing ValvesAutomatic and Mechanical Sensing Valves Model No.: ASVM5 dDiameter in. (mm) D1Top & Bottom Thread L1Length in. (mm) L2Length in. (mm) Hex Size in. (mm) Level Compensator Suspensions 0.08 (2) M5 0.18 (4.5) 0.57 (15) 0.32 (8)