Key Specifications / Parameters Part Number: RPACKX00062 Stem Size (Nominal): ¾ inch (~19.1 mm) Boss (Yoke Boss / Packing Bore) Size: ~3‑9/16 inch (~90.5 mm) Packing Type: Double PTFE (V‑ring style) packing system Kit Contents: Packing rings, box ring, upper wiper, lantern ring Material: PTFE for packing rings; metal parts for wiper and lantern ring Application: Maintenance of sliding-stem valves to restore proper stem sealing