0390559 DELIVERY FLANGE GASKET D.50mm , DELIVERY PACKING 
Japan Code: JS400SV38F-1, JS750SK38F
They are used in 2-inch KOSHIN submersible Pumps to deliver pressure water from the PUMP CASE.  
 
 
 
Suitable for the following KOSHIN pumps Models : PBX-55022, PBX-55011, PBX-65011, PBX7-55022, PBX7-55011, PBX7-65011.
 
Used with the 2 inches delivery flanges 0430624 (G), 0430630 (NIPPLE), 0430623 (NPT).
 
Allows fixing in both vertical and horizontal positions