Retaining Ring, External, .094 I.D., to fit A-dec® Vacuum Valve Stems; Pkg of 10 Fits vacuum valve stems (A-dec® #010.019.00) A-dec® is a registered trademark of A-dec, Inc. DCI has no affiliation with A-dec and A-dec has not authorized DCI replacement parts to be used on or in connection with A-dec® products.