Key Specifications / Parameters Parameter Value / Note Part Number RPACKX00122 Stem Size ¾ inch (19.1 mm) Packing Type Single graphite ribbon + graphite filament Material Low-chloride graphite ribbon / filament packing Sacrificial Washer Zinc washer, thickness 0.004 inch (0.102 mm) Assembly Configuration Single ring arrangement (not double) Typical Application Sliding-stem valves in high temperature service Status Discontinued by manufacturer (as a kit)