ANVER Vacuum Cups and Suction Cups Model: 40 LOCKING SPACER Part Number: A-3150142 ANVER and P-Series Description and Part No. Notes Item Weight oz. (grams) Level Compensator Suspensions (Click Image for More Info) 40 LOCKING SPACER A-3150142 31.50.142 The 40 Locking Spacer is used with the above 40 Connection Plate. It presses in from the bottom. 0.021 (0.6)