A cylindrical item with or without flange(s), designed to be inserted in a pump casing or secured to the impeller of a centrifugal pump. It is used for the purpose of providing a close running clearance between the impeller and casing in order to prevent or overcome leakage due to erosion. It may also be used as a diffuser ring in the suction and discharge throats of valves.
Classification: Parts of turbojet and turbopropeller aircraft engines, other than for use in civil aircraft
NSN 5915-01-369-8999
NSN 5950-01-399-6517
NSN 5990-00-887-7053
NSN 5998-01-348-3936
NSN 6320-01-578-6006
NSN 6150-00-756-3582
NSN 5950-00-689-5074
NSN 5999-01-126-0927
NSN 6130-00-994-4533
NSN 6685-01-092-1222
NSN 6240-01-579-4734
NSN 6610-01-238-8712