Vacuum Suction Cup Level Compensators Rotating Spring Loaded Vacuum Cup Suspension Assemblies (G 1/8″ Thread) Part Number: A-3350069 Part No. Connection Thread Size Travel in. (mm) Height in. (mm) Required Panel Hole Dia. in. (mm) Maximum Panel Thickness in. (mm) Weight (In Grams) A-3350069 G 1/8″ 0.79 (20) 3.15 (80) 0.63 (16) 1.06 (27) 76 Grams The “G” thread is also known as BSPP, commonly used world-wide for Vacuum Applications.