Catcher Assembly SS Plug , Bleed Down Valve
400081-6 is the external, Catcher Assembly SS Plug to the Bleed Down Valve Assembly.
(Looking for the Catcher Adapter (3/8" to 1/2" JIC) connecting bleed down water to drain? Correct part number is #400008-5. There was a misprint on the Hydraulic Bleed Down Catcher Assembly diagram!)